var lime = /******/ (function(modules) { // webpackBootstrap /******/ // The module cache /******/ var installedModules = {}; /******/ /******/ // The require function /******/ function __webpack_require__(moduleId) { /******/ /******/ // Check if module is in cache /******/ if(installedModules[moduleId]) /******/ return installedModules[moduleId].exports; /******/ /******/ // Create a new module (and put it into the cache) /******/ var module = installedModules[moduleId] = { /******/ exports: {}, /******/ id: moduleId, /******/ loaded: false /******/ }; /******/ /******/ // Execute the module function /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); /******/ /******/ // Flag the module as loaded /******/ module.loaded = true; /******/ /******/ // Return the exports of the module /******/ return module.exports; /******/ } /******/ /******/ /******/ // expose the modules object (__webpack_modules__) /******/ __webpack_require__.m = modules; /******/ /******/ // expose the module cache /******/ __webpack_require__.c = installedModules; /******/ /******/ // __webpack_public_path__ /******/ __webpack_require__.p = ""; /******/ /******/ // Load entry module and return exports /******/ return __webpack_require__(0); /******/ }) /************************************************************************/ /******/ ([ /* 0 */ /***/ (function(module, exports, __webpack_require__) { /* WEBPACK VAR INJECTION */(function(global) {'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); exports.PredictedValue = exports.PredictProba = exports.Barchart = exports.Explanation = undefined; var _explanation = __webpack_require__(1); var _explanation2 = _interopRequireDefault(_explanation); var _bar_chart = __webpack_require__(3); var _bar_chart2 = _interopRequireDefault(_bar_chart); var _predict_proba = __webpack_require__(6); var _predict_proba2 = _interopRequireDefault(_predict_proba); var _predicted_value = __webpack_require__(7); var _predicted_value2 = _interopRequireDefault(_predicted_value); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } if (!global._babelPolyfill) { __webpack_require__(8); } __webpack_require__(339); exports.Explanation = _explanation2.default; exports.Barchart = _bar_chart2.default; exports.PredictProba = _predict_proba2.default; exports.PredictedValue = _predicted_value2.default; //require('style-loader'); /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) /***/ }), /* 1 */ /***/ (function(module, exports, __webpack_require__) { 'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); var _d2 = __webpack_require__(2); var _d3 = _interopRequireDefault(_d2); var _bar_chart = __webpack_require__(3); var _bar_chart2 = _interopRequireDefault(_bar_chart); var _lodash = __webpack_require__(4); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var Explanation = function () { function Explanation(class_names) { _classCallCheck(this, Explanation); this.names = class_names; if (class_names.length < 10) { this.colors = _d3.default.scale.category10().domain(this.names); this.colors_i = _d3.default.scale.category10().domain((0, _lodash.range)(this.names.length)); } else { this.colors = _d3.default.scale.category20().domain(this.names); this.colors_i = _d3.default.scale.category20().domain((0, _lodash.range)(this.names.length)); } } // exp: [(feature-name, weight), ...] // label: int // div: d3 selection Explanation.prototype.show = function show(exp, label, div) { var svg = div.append('svg').style('width', '100%'); var colors = ['#5F9EA0', this.colors_i(label)]; var names = ['NOT ' + this.names[label], this.names[label]]; if (this.names.length == 2) { colors = [this.colors_i(0), this.colors_i(1)]; names = this.names; } var plot = new _bar_chart2.default(svg, exp, true, names, colors, true, 10); svg.style('height', plot.svg_height + 'px'); }; // exp has all ocurrences of words, with start index and weight: // exp = [('word', 132, -0.13), ('word3', 111, 1.3) Explanation.prototype.show_raw_text = function show_raw_text(exp, label, raw, div) { var opacity = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : true; //let colors=['#5F9EA0', this.colors(this.exp['class'])]; var colors = ['#5F9EA0', this.colors_i(label)]; if (this.names.length == 2) { colors = [this.colors_i(0), this.colors_i(1)]; } var word_lists = [[], []]; var max_weight = -1; var _iteratorNormalCompletion = true; var _didIteratorError = false; var _iteratorError = undefined; try { for (var _iterator = exp[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { var _step$value = _slicedToArray(_step.value, 3), word = _step$value[0], start = _step$value[1], weight = _step$value[2]; if (weight > 0) { word_lists[1].push([start, start + word.length, weight]); } else { word_lists[0].push([start, start + word.length, -weight]); } max_weight = Math.max(max_weight, Math.abs(weight)); } } catch (err) { _didIteratorError = true; _iteratorError = err; } finally { try { if (!_iteratorNormalCompletion && _iterator.return) { _iterator.return(); } } finally { if (_didIteratorError) { throw _iteratorError; } } } if (!opacity) { max_weight = 0; } this.display_raw_text(div, raw, word_lists, colors, max_weight, true); }; // exp is list of (feature_name, value, weight) Explanation.prototype.show_raw_tabular = function show_raw_tabular(exp, label, div) { div.classed('lime', true).classed('table_div', true); var colors = ['#5F9EA0', this.colors_i(label)]; if (this.names.length == 2) { colors = [this.colors_i(0), this.colors_i(1)]; } var table = div.append('table'); var thead = table.append('tr'); thead.append('td').text('Feature'); thead.append('td').text('Value'); thead.style('color', 'black').style('font-size', '20px'); var _iteratorNormalCompletion2 = true; var _didIteratorError2 = false; var _iteratorError2 = undefined; try { for (var _iterator2 = exp[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) { var _step2$value = _slicedToArray(_step2.value, 3), fname = _step2$value[0], value = _step2$value[1], weight = _step2$value[2]; var tr = table.append('tr'); tr.style('border-style', 'hidden'); tr.append('td').text(fname); tr.append('td').text(value); if (weight > 0) { tr.style('background-color', colors[1]); } else if (weight < 0) { tr.style('background-color', colors[0]); } else { tr.style('color', 'black'); } } } catch (err) { _didIteratorError2 = true; _iteratorError2 = err; } finally { try { if (!_iteratorNormalCompletion2 && _iterator2.return) { _iterator2.return(); } } finally { if (_didIteratorError2) { throw _iteratorError2; } } } }; Explanation.prototype.hexToRgb = function hexToRgb(hex) { var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); return result ? { r: parseInt(result[1], 16), g: parseInt(result[2], 16), b: parseInt(result[3], 16) } : null; }; Explanation.prototype.applyAlpha = function applyAlpha(hex, alpha) { var components = this.hexToRgb(hex); return 'rgba(' + components.r + "," + components.g + "," + components.b + "," + alpha.toFixed(3) + ")"; }; // sord_lists is an array of arrays, of length (colors). if with_positions is true, // word_lists is an array of [start,end] positions instead Explanation.prototype.display_raw_text = function display_raw_text(div, raw_text) { var word_lists = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : []; var colors = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : []; var max_weight = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var positions = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false; div.classed('lime', true).classed('text_div', true); div.append('h3').text('Text with highlighted words'); var highlight_tag = 'span'; var text_span = div.append('span').style('white-space', 'pre-wrap').text(raw_text); var position_lists = word_lists; if (!positions) { position_lists = this.wordlists_to_positions(word_lists, raw_text); } var objects = []; var _iteratorNormalCompletion3 = true; var _didIteratorError3 = false; var _iteratorError3 = undefined; try { var _loop = function _loop() { var i = _step3.value; position_lists[i].map(function (x) { return objects.push({ 'label': i, 'start': x[0], 'end': x[1], 'alpha': max_weight === 0 ? 1 : x[2] / max_weight }); }); }; for (var _iterator3 = (0, _lodash.range)(position_lists.length)[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) { _loop(); } } catch (err) { _didIteratorError3 = true; _iteratorError3 = err; } finally { try { if (!_iteratorNormalCompletion3 && _iterator3.return) { _iterator3.return(); } } finally { if (_didIteratorError3) { throw _iteratorError3; } } } objects = (0, _lodash.sortBy)(objects, function (x) { return x['start']; }); var node = text_span.node().childNodes[0]; var subtract = 0; var _iteratorNormalCompletion4 = true; var _didIteratorError4 = false; var _iteratorError4 = undefined; try { for (var _iterator4 = objects[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) { var obj = _step4.value; var word = raw_text.slice(obj.start, obj.end); var start = obj.start - subtract; var end = obj.end - subtract; var match = document.createElement(highlight_tag); match.appendChild(document.createTextNode(word)); match.style.backgroundColor = this.applyAlpha(colors[obj.label], obj.alpha); var after = node.splitText(start); after.nodeValue = after.nodeValue.substring(word.length); node.parentNode.insertBefore(match, after); subtract += end; node = after; } } catch (err) { _didIteratorError4 = true; _iteratorError4 = err; } finally { try { if (!_iteratorNormalCompletion4 && _iterator4.return) { _iterator4.return(); } } finally { if (_didIteratorError4) { throw _iteratorError4; } } } }; Explanation.prototype.wordlists_to_positions = function wordlists_to_positions(word_lists, raw_text) { var ret = []; var _iteratorNormalCompletion5 = true; var _didIteratorError5 = false; var _iteratorError5 = undefined; try { for (var _iterator5 = word_lists[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) { var words = _step5.value; if (words.length === 0) { ret.push([]); continue; } var re = new RegExp("\\b(" + words.join('|') + ")\\b", 'gm'); var temp = void 0; var list = []; while ((temp = re.exec(raw_text)) !== null) { list.push([temp.index, temp.index + temp[0].length]); } ret.push(list); } } catch (err) { _didIteratorError5 = true; _iteratorError5 = err; } finally { try { if (!_iteratorNormalCompletion5 && _iterator5.return) { _iterator5.return(); } } finally { if (_didIteratorError5) { throw _iteratorError5; } } } return ret; }; return Explanation; }(); exports.default = Explanation; /***/ }), /* 2 */ /***/ (function(module, exports, __webpack_require__) { var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;!function() { var d3 = { version: "3.5.17" }; var d3_arraySlice = [].slice, d3_array = function(list) { return d3_arraySlice.call(list); }; var d3_document = this.document; function d3_documentElement(node) { return node && (node.ownerDocument || node.document || node).documentElement; } function d3_window(node) { return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView); } if (d3_document) { try { d3_array(d3_document.documentElement.childNodes)[0].nodeType; } catch (e) { d3_array = function(list) { var i = list.length, array = new Array(i); while (i--) array[i] = list[i]; return array; }; } } if (!Date.now) Date.now = function() { return +new Date(); }; if (d3_document) { try { d3_document.createElement("DIV").style.setProperty("opacity", 0, ""); } catch (error) { var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty; d3_element_prototype.setAttribute = function(name, value) { d3_element_setAttribute.call(this, name, value + ""); }; d3_element_prototype.setAttributeNS = function(space, local, value) { d3_element_setAttributeNS.call(this, space, local, value + ""); }; d3_style_prototype.setProperty = function(name, value, priority) { d3_style_setProperty.call(this, name, value + "", priority); }; } } d3.ascending = d3_ascending; function d3_ascending(a, b) { return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; } d3.descending = function(a, b) { return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; }; d3.min = function(array, f) { var i = -1, n = array.length, a, b; if (arguments.length === 1) { while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } while (++i < n) if ((b = array[i]) != null && a > b) a = b; } else { while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) { a = b; break; } while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b; } return a; }; d3.max = function(array, f) { var i = -1, n = array.length, a, b; if (arguments.length === 1) { while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } while (++i < n) if ((b = array[i]) != null && b > a) a = b; } else { while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) { a = b; break; } while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b; } return a; }; d3.extent = function(array, f) { var i = -1, n = array.length, a, b, c; if (arguments.length === 1) { while (++i < n) if ((b = array[i]) != null && b >= b) { a = c = b; break; } while (++i < n) if ((b = array[i]) != null) { if (a > b) a = b; if (c < b) c = b; } } else { while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) { a = c = b; break; } while (++i < n) if ((b = f.call(array, array[i], i)) != null) { if (a > b) a = b; if (c < b) c = b; } } return [ a, c ]; }; function d3_number(x) { return x === null ? NaN : +x; } function d3_numeric(x) { return !isNaN(x); } d3.sum = function(array, f) { var s = 0, n = array.length, a, i = -1; if (arguments.length === 1) { while (++i < n) if (d3_numeric(a = +array[i])) s += a; } else { while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a; } return s; }; d3.mean = function(array, f) { var s = 0, n = array.length, a, i = -1, j = n; if (arguments.length === 1) { while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j; } else { while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j; } if (j) return s / j; }; d3.quantile = function(values, p) { var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h; return e ? v + e * (values[h] - v) : v; }; d3.median = function(array, f) { var numbers = [], n = array.length, a, i = -1; if (arguments.length === 1) { while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a); } else { while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a); } if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5); }; d3.variance = function(array, f) { var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0; if (arguments.length === 1) { while (++i < n) { if (d3_numeric(a = d3_number(array[i]))) { d = a - m; m += d / ++j; s += d * (a - m); } } } else { while (++i < n) { if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) { d = a - m; m += d / ++j; s += d * (a - m); } } } if (j > 1) return s / (j - 1); }; d3.deviation = function() { var v = d3.variance.apply(this, arguments); return v ? Math.sqrt(v) : v; }; function d3_bisector(compare) { return { left: function(a, x, lo, hi) { if (arguments.length < 3) lo = 0; if (arguments.length < 4) hi = a.length; while (lo < hi) { var mid = lo + hi >>> 1; if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid; } return lo; }, right: function(a, x, lo, hi) { if (arguments.length < 3) lo = 0; if (arguments.length < 4) hi = a.length; while (lo < hi) { var mid = lo + hi >>> 1; if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1; } return lo; } }; } var d3_bisect = d3_bisector(d3_ascending); d3.bisectLeft = d3_bisect.left; d3.bisect = d3.bisectRight = d3_bisect.right; d3.bisector = function(f) { return d3_bisector(f.length === 1 ? function(d, x) { return d3_ascending(f(d), x); } : f); }; d3.shuffle = function(array, i0, i1) { if ((m = arguments.length) < 3) { i1 = array.length; if (m < 2) i0 = 0; } var m = i1 - i0, t, i; while (m) { i = Math.random() * m-- | 0; t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t; } return array; }; d3.permute = function(array, indexes) { var i = indexes.length, permutes = new Array(i); while (i--) permutes[i] = array[indexes[i]]; return permutes; }; d3.pairs = function(array) { var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n); while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ]; return pairs; }; d3.transpose = function(matrix) { if (!(n = matrix.length)) return []; for (var i = -1, m = d3.min(matrix, d3_transposeLength), transpose = new Array(m); ++i < m; ) { for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n; ) { row[j] = matrix[j][i]; } } return transpose; }; function d3_transposeLength(d) { return d.length; } d3.zip = function() { return d3.transpose(arguments); }; d3.keys = function(map) { var keys = []; for (var key in map) keys.push(key); return keys; }; d3.values = function(map) { var values = []; for (var key in map) values.push(map[key]); return values; }; d3.entries = function(map) { var entries = []; for (var key in map) entries.push({ key: key, value: map[key] }); return entries; }; d3.merge = function(arrays) { var n = arrays.length, m, i = -1, j = 0, merged, array; while (++i < n) j += arrays[i].length; merged = new Array(j); while (--n >= 0) { array = arrays[n]; m = array.length; while (--m >= 0) { merged[--j] = array[m]; } } return merged; }; var abs = Math.abs; d3.range = function(start, stop, step) { if (arguments.length < 3) { step = 1; if (arguments.length < 2) { stop = start; start = 0; } } if ((stop - start) / step === Infinity) throw new Error("infinite range"); var range = [], k = d3_range_integerScale(abs(step)), i = -1, j; start *= k, stop *= k, step *= k; if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k); return range; }; function d3_range_integerScale(x) { var k = 1; while (x * k % 1) k *= 10; return k; } function d3_class(ctor, properties) { for (var key in properties) { Object.defineProperty(ctor.prototype, key, { value: properties[key], enumerable: false }); } } d3.map = function(object, f) { var map = new d3_Map(); if (object instanceof d3_Map) { object.forEach(function(key, value) { map.set(key, value); }); } else if (Array.isArray(object)) { var i = -1, n = object.length, o; if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o); } else { for (var key in object) map.set(key, object[key]); } return map; }; function d3_Map() { this._ = Object.create(null); } var d3_map_proto = "__proto__", d3_map_zero = "\x00"; d3_class(d3_Map, { has: d3_map_has, get: function(key) { return this._[d3_map_escape(key)]; }, set: function(key, value) { return this._[d3_map_escape(key)] = value; }, remove: d3_map_remove, keys: d3_map_keys, values: function() { var values = []; for (var key in this._) values.push(this._[key]); return values; }, entries: function() { var entries = []; for (var key in this._) entries.push({ key: d3_map_unescape(key), value: this._[key] }); return entries; }, size: d3_map_size, empty: d3_map_empty, forEach: function(f) { for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]); } }); function d3_map_escape(key) { return (key += "") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key; } function d3_map_unescape(key) { return (key += "")[0] === d3_map_zero ? key.slice(1) : key; } function d3_map_has(key) { return d3_map_escape(key) in this._; } function d3_map_remove(key) { return (key = d3_map_escape(key)) in this._ && delete this._[key]; } function d3_map_keys() { var keys = []; for (var key in this._) keys.push(d3_map_unescape(key)); return keys; } function d3_map_size() { var size = 0; for (var key in this._) ++size; return size; } function d3_map_empty() { for (var key in this._) return false; return true; } d3.nest = function() { var nest = {}, keys = [], sortKeys = [], sortValues, rollup; function map(mapType, array, depth) { if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array; var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values; while (++i < n) { if (values = valuesByKey.get(keyValue = key(object = array[i]))) { values.push(object); } else { valuesByKey.set(keyValue, [ object ]); } } if (mapType) { object = mapType(); setter = function(keyValue, values) { object.set(keyValue, map(mapType, values, depth)); }; } else { object = {}; setter = function(keyValue, values) { object[keyValue] = map(mapType, values, depth); }; } valuesByKey.forEach(setter); return object; } function entries(map, depth) { if (depth >= keys.length) return map; var array = [], sortKey = sortKeys[depth++]; map.forEach(function(key, keyMap) { array.push({ key: key, values: entries(keyMap, depth) }); }); return sortKey ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array; } nest.map = function(array, mapType) { return map(mapType, array, 0); }; nest.entries = function(array) { return entries(map(d3.map, array, 0), 0); }; nest.key = function(d) { keys.push(d); return nest; }; nest.sortKeys = function(order) { sortKeys[keys.length - 1] = order; return nest; }; nest.sortValues = function(order) { sortValues = order; return nest; }; nest.rollup = function(f) { rollup = f; return nest; }; return nest; }; d3.set = function(array) { var set = new d3_Set(); if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]); return set; }; function d3_Set() { this._ = Object.create(null); } d3_class(d3_Set, { has: d3_map_has, add: function(key) { this._[d3_map_escape(key += "")] = true; return key; }, remove: d3_map_remove, values: d3_map_keys, size: d3_map_size, empty: d3_map_empty, forEach: function(f) { for (var key in this._) f.call(this, d3_map_unescape(key)); } }); d3.behavior = {}; function d3_identity(d) { return d; } d3.rebind = function(target, source) { var i = 1, n = arguments.length, method; while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]); return target; }; function d3_rebind(target, source, method) { return function() { var value = method.apply(source, arguments); return value === source ? target : value; }; } function d3_vendorSymbol(object, name) { if (name in object) return name; name = name.charAt(0).toUpperCase() + name.slice(1); for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) { var prefixName = d3_vendorPrefixes[i] + name; if (prefixName in object) return prefixName; } } var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ]; function d3_noop() {} d3.dispatch = function() { var dispatch = new d3_dispatch(), i = -1, n = arguments.length; while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); return dispatch; }; function d3_dispatch() {} d3_dispatch.prototype.on = function(type, listener) { var i = type.indexOf("."), name = ""; if (i >= 0) { name = type.slice(i + 1); type = type.slice(0, i); } if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener); if (arguments.length === 2) { if (listener == null) for (type in this) { if (this.hasOwnProperty(type)) this[type].on(name, null); } return this; } }; function d3_dispatch_event(dispatch) { var listeners = [], listenerByName = new d3_Map(); function event() { var z = listeners, i = -1, n = z.length, l; while (++i < n) if (l = z[i].on) l.apply(this, arguments); return dispatch; } event.on = function(name, listener) { var l = listenerByName.get(name), i; if (arguments.length < 2) return l && l.on; if (l) { l.on = null; listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1)); listenerByName.remove(name); } if (listener) listeners.push(listenerByName.set(name, { on: listener })); return dispatch; }; return event; } d3.event = null; function d3_eventPreventDefault() { d3.event.preventDefault(); } function d3_eventSource() { var e = d3.event, s; while (s = e.sourceEvent) e = s; return e; } function d3_eventDispatch(target) { var dispatch = new d3_dispatch(), i = 0, n = arguments.length; while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); dispatch.of = function(thiz, argumentz) { return function(e1) { try { var e0 = e1.sourceEvent = d3.event; e1.target = target; d3.event = e1; dispatch[e1.type].apply(thiz, argumentz); } finally { d3.event = e0; } }; }; return dispatch; } d3.requote = function(s) { return s.replace(d3_requote_re, "\\$&"); }; var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; var d3_subclass = {}.__proto__ ? function(object, prototype) { object.__proto__ = prototype; } : function(object, prototype) { for (var property in prototype) object[property] = prototype[property]; }; function d3_selection(groups) { d3_subclass(groups, d3_selectionPrototype); return groups; } var d3_select = function(s, n) { return n.querySelector(s); }, d3_selectAll = function(s, n) { return n.querySelectorAll(s); }, d3_selectMatches = function(n, s) { var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, "matchesSelector")]; d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); }; return d3_selectMatches(n, s); }; if (typeof Sizzle === "function") { d3_select = function(s, n) { return Sizzle(s, n)[0] || null; }; d3_selectAll = Sizzle; d3_selectMatches = Sizzle.matchesSelector; } d3.selection = function() { return d3.select(d3_document.documentElement); }; var d3_selectionPrototype = d3.selection.prototype = []; d3_selectionPrototype.select = function(selector) { var subgroups = [], subgroup, subnode, group, node; selector = d3_selection_selector(selector); for (var j = -1, m = this.length; ++j < m; ) { subgroups.push(subgroup = []); subgroup.parentNode = (group = this[j]).parentNode; for (var i = -1, n = group.length; ++i < n; ) { if (node = group[i]) { subgroup.push(subnode = selector.call(node, node.__data__, i, j)); if (subnode && "__data__" in node) subnode.__data__ = node.__data__; } else { subgroup.push(null); } } } return d3_selection(subgroups); }; function d3_selection_selector(selector) { return typeof selector === "function" ? selector : function() { return d3_select(selector, this); }; } d3_selectionPrototype.selectAll = function(selector) { var subgroups = [], subgroup, node; selector = d3_selection_selectorAll(selector); for (var j = -1, m = this.length; ++j < m; ) { for (var group = this[j], i = -1, n = group.length; ++i < n; ) { if (node = group[i]) { subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j))); subgroup.parentNode = node; } } } return d3_selection(subgroups); }; function d3_selection_selectorAll(selector) { return typeof selector === "function" ? selector : function() { return d3_selectAll(selector, this); }; } var d3_nsXhtml = "http://www.w3.org/1999/xhtml"; var d3_nsPrefix = { svg: "http://www.w3.org/2000/svg", xhtml: d3_nsXhtml, xlink: "http://www.w3.org/1999/xlink", xml: "http://www.w3.org/XML/1998/namespace", xmlns: "http://www.w3.org/2000/xmlns/" }; d3.ns = { prefix: d3_nsPrefix, qualify: function(name) { var i = name.indexOf(":"), prefix = name; if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1); return d3_nsPrefix.hasOwnProperty(prefix) ? { space: d3_nsPrefix[prefix], local: name } : name; } }; d3_selectionPrototype.attr = function(name, value) { if (arguments.length < 2) { if (typeof name === "string") { var node = this.node(); name = d3.ns.qualify(name); return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name); } for (value in name) this.each(d3_selection_attr(value, name[value])); return this; } return this.each(d3_selection_attr(name, value)); }; function d3_selection_attr(name, value) { name = d3.ns.qualify(name); function attrNull() { this.removeAttribute(name); } function attrNullNS() { this.removeAttributeNS(name.space, name.local); } function attrConstant() { this.setAttribute(name, value); } function attrConstantNS() { this.setAttributeNS(name.space, name.local, value); } function attrFunction() { var x = value.apply(this, arguments); if (x == null) this.removeAttribute(name); else this.setAttribute(name, x); } function attrFunctionNS() { var x = value.apply(this, arguments); if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x); } return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant; } function d3_collapse(s) { return s.trim().replace(/\s+/g, " "); } d3_selectionPrototype.classed = function(name, value) { if (arguments.length < 2) { if (typeof name === "string") { var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1; if (value = node.classList) { while (++i < n) if (!value.contains(name[i])) return false; } else { value = node.getAttribute("class"); while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false; } return true; } for (value in name) this.each(d3_selection_classed(value, name[value])); return this; } return this.each(d3_selection_classed(name, value)); }; function d3_selection_classedRe(name) { return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g"); } function d3_selection_classes(name) { return (name + "").trim().split(/^|\s+/); } function d3_selection_classed(name, value) { name = d3_selection_classes(name).map(d3_selection_classedName); var n = name.length; function classedConstant() { var i = -1; while (++i < n) name[i](this, value); } function classedFunction() { var i = -1, x = value.apply(this, arguments); while (++i < n) name[i](this, x); } return typeof value === "function" ? classedFunction : classedConstant; } function d3_selection_classedName(name) { var re = d3_selection_classedRe(name); return function(node, value) { if (c = node.classList) return value ? c.add(name) : c.remove(name); var c = node.getAttribute("class") || ""; if (value) { re.lastIndex = 0; if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name)); } else { node.setAttribute("class", d3_collapse(c.replace(re, " "))); } }; } d3_selectionPrototype.style = function(name, value, priority) { var n = arguments.length; if (n < 3) { if (typeof name !== "string") { if (n < 2) value = ""; for (priority in name) this.each(d3_selection_style(priority, name[priority], value)); return this; } if (n < 2) { var node = this.node(); return d3_window(node).getComputedStyle(node, null).getPropertyValue(name); } priority = ""; } return this.each(d3_selection_style(name, value, priority)); }; function d3_selection_style(name, value, priority) { function styleNull() { this.style.removeProperty(name); } function styleConstant() { this.style.setProperty(name, value, priority); } function styleFunction() { var x = value.apply(this, arguments); if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority); } return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant; } d3_selectionPrototype.property = function(name, value) { if (arguments.length < 2) { if (typeof name === "string") return this.node()[name]; for (value in name) this.each(d3_selection_property(value, name[value])); return this; } return this.each(d3_selection_property(name, value)); }; function d3_selection_property(name, value) { function propertyNull() { delete this[name]; } function propertyConstant() { this[name] = value; } function propertyFunction() { var x = value.apply(this, arguments); if (x == null) delete this[name]; else this[name] = x; } return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant; } d3_selectionPrototype.text = function(value) { return arguments.length ? this.each(typeof value === "function" ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null ? function() { this.textContent = ""; } : function() { this.textContent = value; }) : this.node().textContent; }; d3_selectionPrototype.html = function(value) { return arguments.length ? this.each(typeof value === "function" ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null ? function() { this.innerHTML = ""; } : function() { this.innerHTML = value; }) : this.node().innerHTML; }; d3_selectionPrototype.append = function(name) { name = d3_selection_creator(name); return this.select(function() { return this.appendChild(name.apply(this, arguments)); }); }; function d3_selection_creator(name) { function create() { var document = this.ownerDocument, namespace = this.namespaceURI; return namespace === d3_nsXhtml && document.documentElement.namespaceURI === d3_nsXhtml ? document.createElement(name) : document.createElementNS(namespace, name); } function createNS() { return this.ownerDocument.createElementNS(name.space, name.local); } return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create; } d3_selectionPrototype.insert = function(name, before) { name = d3_selection_creator(name); before = d3_selection_selector(before); return this.select(function() { return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null); }); }; d3_selectionPrototype.remove = function() { return this.each(d3_selectionRemove); }; function d3_selectionRemove() { var parent = this.parentNode; if (parent) parent.removeChild(this); } d3_selectionPrototype.data = function(value, key) { var i = -1, n = this.length, group, node; if (!arguments.length) { value = new Array(n = (group = this[0]).length); while (++i < n) { if (node = group[i]) { value[i] = node.__data__; } } return value; } function bind(group, groupData) { var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData; if (key) { var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue; for (i = -1; ++i < n; ) { if (node = group[i]) { if (nodeByKeyValue.has(keyValue = key.call(node, node.__data__, i))) { exitNodes[i] = node; } else { nodeByKeyValue.set(keyValue, node); } keyValues[i] = keyValue; } } for (i = -1; ++i < m; ) { if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) { enterNodes[i] = d3_selection_dataNode(nodeData); } else if (node !== true) { updateNodes[i] = node; node.__data__ = nodeData; } nodeByKeyValue.set(keyValue, true); } for (i = -1; ++i < n; ) { if (i in keyValues && nodeByKeyValue.get(keyValues[i]) !== true) { exitNodes[i] = group[i]; } } } else { for (i = -1; ++i < n0; ) { node = group[i]; nodeData = groupData[i]; if (node) { node.__data__ = nodeData; updateNodes[i] = node; } else { enterNodes[i] = d3_selection_dataNode(nodeData); } } for (;i < m; ++i) { enterNodes[i] = d3_selection_dataNode(groupData[i]); } for (;i < n; ++i) { exitNodes[i] = group[i]; } } enterNodes.update = updateNodes; enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode; enter.push(enterNodes); update.push(updateNodes); exit.push(exitNodes); } var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]); if (typeof value === "function") { while (++i < n) { bind(group = this[i], value.call(group, group.parentNode.__data__, i)); } } else { while (++i < n) { bind(group = this[i], value); } } update.enter = function() { return enter; }; update.exit = function() { return exit; }; return update; }; function d3_selection_dataNode(data) { return { __data__: data }; } d3_selectionPrototype.datum = function(value) { return arguments.length ? this.property("__data__", value) : this.property("__data__"); }; d3_selectionPrototype.filter = function(filter) { var subgroups = [], subgroup, group, node; if (typeof filter !== "function") filter = d3_selection_filter(filter); for (var j = 0, m = this.length; j < m; j++) { subgroups.push(subgroup = []); subgroup.parentNode = (group = this[j]).parentNode; for (var i = 0, n = group.length; i < n; i++) { if ((node = group[i]) && filter.call(node, node.__data__, i, j)) { subgroup.push(node); } } } return d3_selection(subgroups); }; function d3_selection_filter(selector) { return function() { return d3_selectMatches(this, selector); }; } d3_selectionPrototype.order = function() { for (var j = -1, m = this.length; ++j < m; ) { for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) { if (node = group[i]) { if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next); next = node; } } } return this; }; d3_selectionPrototype.sort = function(comparator) { comparator = d3_selection_sortComparator.apply(this, arguments); for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator); return this.order(); }; function d3_selection_sortComparator(comparator) { if (!arguments.length) comparator = d3_ascending; return function(a, b) { return a && b ? comparator(a.__data__, b.__data__) : !a - !b; }; } d3_selectionPrototype.each = function(callback) { return d3_selection_each(this, function(node, i, j) { callback.call(node, node.__data__, i, j); }); }; function d3_selection_each(groups, callback) { for (var j = 0, m = groups.length; j < m; j++) { for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) { if (node = group[i]) callback(node, i, j); } } return groups; } d3_selectionPrototype.call = function(callback) { var args = d3_array(arguments); callback.apply(args[0] = this, args); return this; }; d3_selectionPrototype.empty = function() { return !this.node(); }; d3_selectionPrototype.node = function() { for (var j = 0, m = this.length; j < m; j++) { for (var group = this[j], i = 0, n = group.length; i < n; i++) { var node = group[i]; if (node) return node; } } return null; }; d3_selectionPrototype.size = function() { var n = 0; d3_selection_each(this, function() { ++n; }); return n; }; function d3_selection_enter(selection) { d3_subclass(selection, d3_selection_enterPrototype); return selection; } var d3_selection_enterPrototype = []; d3.selection.enter = d3_selection_enter; d3.selection.enter.prototype = d3_selection_enterPrototype; d3_selection_enterPrototype.append = d3_selectionPrototype.append; d3_selection_enterPrototype.empty = d3_selectionPrototype.empty; d3_selection_enterPrototype.node = d3_selectionPrototype.node; d3_selection_enterPrototype.call = d3_selectionPrototype.call; d3_selection_enterPrototype.size = d3_selectionPrototype.size; d3_selection_enterPrototype.select = function(selector) { var subgroups = [], subgroup, subnode, upgroup, group, node; for (var j = -1, m = this.length; ++j < m; ) { upgroup = (group = this[j]).update; subgroups.push(subgroup = []); subgroup.parentNode = group.parentNode; for (var i = -1, n = group.length; ++i < n; ) { if (node = group[i]) { subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j)); subnode.__data__ = node.__data__; } else { subgroup.push(null); } } } return d3_selection(subgroups); }; d3_selection_enterPrototype.insert = function(name, before) { if (arguments.length < 2) before = d3_selection_enterInsertBefore(this); return d3_selectionPrototype.insert.call(this, name, before); }; function d3_selection_enterInsertBefore(enter) { var i0, j0; return function(d, i, j) { var group = enter[j].update, n = group.length, node; if (j != j0) j0 = j, i0 = 0; if (i >= i0) i0 = i + 1; while (!(node = group[i0]) && ++i0 < n) ; return node; }; } d3.select = function(node) { var group; if (typeof node === "string") { group = [ d3_select(node, d3_document) ]; group.parentNode = d3_document.documentElement; } else { group = [ node ]; group.parentNode = d3_documentElement(node); } return d3_selection([ group ]); }; d3.selectAll = function(nodes) { var group; if (typeof nodes === "string") { group = d3_array(d3_selectAll(nodes, d3_document)); group.parentNode = d3_document.documentElement; } else { group = d3_array(nodes); group.parentNode = null; } return d3_selection([ group ]); }; d3_selectionPrototype.on = function(type, listener, capture) { var n = arguments.length; if (n < 3) { if (typeof type !== "string") { if (n < 2) listener = false; for (capture in type) this.each(d3_selection_on(capture, type[capture], listener)); return this; } if (n < 2) return (n = this.node()["__on" + type]) && n._; capture = false; } return this.each(d3_selection_on(type, listener, capture)); }; function d3_selection_on(type, listener, capture) { var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener; if (i > 0) type = type.slice(0, i); var filter = d3_selection_onFilters.get(type); if (filter) type = filter, wrap = d3_selection_onFilter; function onRemove() { var l = this[name]; if (l) { this.removeEventListener(type, l, l.$); delete this[name]; } } function onAdd() { var l = wrap(listener, d3_array(arguments)); onRemove.call(this); this.addEventListener(type, this[name] = l, l.$ = capture); l._ = listener; } function removeAll() { var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match; for (var name in this) { if (match = name.match(re)) { var l = this[name]; this.removeEventListener(match[1], l, l.$); delete this[name]; } } } return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll; } var d3_selection_onFilters = d3.map({ mouseenter: "mouseover", mouseleave: "mouseout" }); if (d3_document) { d3_selection_onFilters.forEach(function(k) { if ("on" + k in d3_document) d3_selection_onFilters.remove(k); }); } function d3_selection_onListener(listener, argumentz) { return function(e) { var o = d3.event; d3.event = e; argumentz[0] = this.__data__; try { listener.apply(this, argumentz); } finally { d3.event = o; } }; } function d3_selection_onFilter(listener, argumentz) { var l = d3_selection_onListener(listener, argumentz); return function(e) { var target = this, related = e.relatedTarget; if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) { l.call(target, e); } }; } var d3_event_dragSelect, d3_event_dragId = 0; function d3_event_dragSuppress(node) { var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window(node)).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault); if (d3_event_dragSelect == null) { d3_event_dragSelect = "onselectstart" in node ? false : d3_vendorSymbol(node.style, "userSelect"); } if (d3_event_dragSelect) { var style = d3_documentElement(node).style, select = style[d3_event_dragSelect]; style[d3_event_dragSelect] = "none"; } return function(suppressClick) { w.on(name, null); if (d3_event_dragSelect) style[d3_event_dragSelect] = select; if (suppressClick) { var off = function() { w.on(click, null); }; w.on(click, function() { d3_eventPreventDefault(); off(); }, true); setTimeout(off, 0); } }; } d3.mouse = function(container) { return d3_mousePoint(container, d3_eventSource()); }; var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0; function d3_mousePoint(container, e) { if (e.changedTouches) e = e.changedTouches[0]; var svg = container.ownerSVGElement || container; if (svg.createSVGPoint) { var point = svg.createSVGPoint(); if (d3_mouse_bug44083 < 0) { var window = d3_window(container); if (window.scrollX || window.scrollY) { svg = d3.select("body").append("svg").style({ position: "absolute", top: 0, left: 0, margin: 0, padding: 0, border: "none" }, "important"); var ctm = svg[0][0].getScreenCTM(); d3_mouse_bug44083 = !(ctm.f || ctm.e); svg.remove(); } } if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, point.y = e.clientY; point = point.matrixTransform(container.getScreenCTM().inverse()); return [ point.x, point.y ]; } var rect = container.getBoundingClientRect(); return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ]; } d3.touch = function(container, touches, identifier) { if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches; if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) { if ((touch = touches[i]).identifier === identifier) { return d3_mousePoint(container, touch); } } }; d3.behavior.drag = function() { var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, "touchmove", "touchend"); function drag() { this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart); } function dragstart(id, position, subject, move, end) { return function() { var that = this, target = d3.event.target.correspondingElement || d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId); if (origin) { dragOffset = origin.apply(that, arguments); dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ]; } else { dragOffset = [ 0, 0 ]; } dispatch({ type: "dragstart" }); function moved() { var position1 = position(parent, dragId), dx, dy; if (!position1) return; dx = position1[0] - position0[0]; dy = position1[1] - position0[1]; dragged |= dx | dy; position0 = position1; dispatch({ type: "drag", x: position1[0] + dragOffset[0], y: position1[1] + dragOffset[1], dx: dx, dy: dy }); } function ended() { if (!position(parent, dragId)) return; dragSubject.on(move + dragName, null).on(end + dragName, null); dragRestore(dragged); dispatch({ type: "dragend" }); } }; } drag.origin = function(x) { if (!arguments.length) return origin; origin = x; return drag; }; return d3.rebind(drag, event, "on"); }; function d3_behavior_dragTouchId() { return d3.event.changedTouches[0].identifier; } d3.touches = function(container, touches) { if (arguments.length < 2) touches = d3_eventSource().touches; return touches ? d3_array(touches).map(function(touch) { var point = d3_mousePoint(container, touch); point.identifier = touch.identifier; return point; }) : []; }; var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π; function d3_sgn(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; } function d3_cross2d(a, b, c) { return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]); } function d3_acos(x) { return x > 1 ? 0 : x < -1 ? π : Math.acos(x); } function d3_asin(x) { return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x); } function d3_sinh(x) { return ((x = Math.exp(x)) - 1 / x) / 2; } function d3_cosh(x) { return ((x = Math.exp(x)) + 1 / x) / 2; } function d3_tanh(x) { return ((x = Math.exp(2 * x)) - 1) / (x + 1); } function d3_haversin(x) { return (x = Math.sin(x / 2)) * x; } var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4; d3.interpolateZoom = function(p0, p1) { var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2], dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, i, S; if (d2 < ε2) { S = Math.log(w1 / w0) / ρ; i = function(t) { return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * t * S) ]; }; } else { var d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1); S = (r1 - r0) / ρ; i = function(t) { var s = t * S, coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0)); return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ]; }; } i.duration = S * 1e3; return i; }; d3.behavior.zoom = function() { var view = { x: 0, y: 0, k: 1 }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1; if (!d3_behavior_zoomWheel) { d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() { return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1); }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() { return d3.event.wheelDelta; }, "mousewheel") : (d3_behavior_zoomDelta = function() { return -d3.event.detail; }, "MozMousePixelScroll"); } function zoom(g) { g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted); } zoom.event = function(g) { g.each(function() { var dispatch = event.of(this, arguments), view1 = view; if (d3_transitionInheritId) { d3.select(this).transition().each("start.zoom", function() { view = this.__chart__ || { x: 0, y: 0, k: 1 }; zoomstarted(dispatch); }).tween("zoom:zoom", function() { var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]); return function(t) { var l = i(t), k = dx / l[2]; this.__chart__ = view = { x: cx - l[0] * k, y: cy - l[1] * k, k: k }; zoomed(dispatch); }; }).each("interrupt.zoom", function() { zoomended(dispatch); }).each("end.zoom", function() { zoomended(dispatch); }); } else { this.__chart__ = view; zoomstarted(dispatch); zoomed(dispatch); zoomended(dispatch); } }); }; zoom.translate = function(_) { if (!arguments.length) return [ view.x, view.y ]; view = { x: +_[0], y: +_[1], k: view.k }; rescale(); return zoom; }; zoom.scale = function(_) { if (!arguments.length) return view.k; view = { x: view.x, y: view.y, k: null }; scaleTo(+_); rescale(); return zoom; }; zoom.scaleExtent = function(_) { if (!arguments.length) return scaleExtent; scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ]; return zoom; }; zoom.center = function(_) { if (!arguments.length) return center; center = _ && [ +_[0], +_[1] ]; return zoom; }; zoom.size = function(_) { if (!arguments.length) return size; size = _ && [ +_[0], +_[1] ]; return zoom; }; zoom.duration = function(_) { if (!arguments.length) return duration; duration = +_; return zoom; }; zoom.x = function(z) { if (!arguments.length) return x1; x1 = z; x0 = z.copy(); view = { x: 0, y: 0, k: 1 }; return zoom; }; zoom.y = function(z) { if (!arguments.length) return y1; y1 = z; y0 = z.copy(); view = { x: 0, y: 0, k: 1 }; return zoom; }; function location(p) { return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ]; } function point(l) { return [ l[0] * view.k + view.x, l[1] * view.k + view.y ]; } function scaleTo(s) { view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s)); } function translateTo(p, l) { l = point(l); view.x += p[0] - l[0]; view.y += p[1] - l[1]; } function zoomTo(that, p, l, k) { that.__chart__ = { x: view.x, y: view.y, k: view.k }; scaleTo(Math.pow(2, k)); translateTo(center0 = p, l); that = d3.select(that); if (duration > 0) that = that.transition().duration(duration); that.call(zoom.event); } function rescale() { if (x1) x1.domain(x0.range().map(function(x) { return (x - view.x) / view.k; }).map(x0.invert)); if (y1) y1.domain(y0.range().map(function(y) { return (y - view.y) / view.k; }).map(y0.invert)); } function zoomstarted(dispatch) { if (!zooming++) dispatch({ type: "zoomstart" }); } function zoomed(dispatch) { rescale(); dispatch({ type: "zoom", scale: view.k, translate: [ view.x, view.y ] }); } function zoomended(dispatch) { if (!--zooming) dispatch({ type: "zoomend" }), center0 = null; } function mousedowned() { var that = this, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that); d3_selection_interrupt.call(that); zoomstarted(dispatch); function moved() { dragged = 1; translateTo(d3.mouse(that), location0); zoomed(dispatch); } function ended() { subject.on(mousemove, null).on(mouseup, null); dragRestore(dragged); zoomended(dispatch); } } function touchstarted() { var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that); started(); zoomstarted(dispatch); subject.on(mousedown, null).on(touchstart, started); function relocate() { var touches = d3.touches(that); scale0 = view.k; touches.forEach(function(t) { if (t.identifier in locations0) locations0[t.identifier] = location(t); }); return touches; } function started() { var target = d3.event.target; d3.select(target).on(touchmove, moved).on(touchend, ended); targets.push(target); var changed = d3.event.changedTouches; for (var i = 0, n = changed.length; i < n; ++i) { locations0[changed[i].identifier] = null; } var touches = relocate(), now = Date.now(); if (touches.length === 1) { if (now - touchtime < 500) { var p = touches[0]; zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1); d3_eventPreventDefault(); } touchtime = now; } else if (touches.length > 1) { var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1]; distance0 = dx * dx + dy * dy; } } function moved() { var touches = d3.touches(that), p0, l0, p1, l1; d3_selection_interrupt.call(that); for (var i = 0, n = touches.length; i < n; ++i, l1 = null) { p1 = touches[i]; if (l1 = locations0[p1.identifier]) { if (l0) break; p0 = p1, l0 = l1; } } if (l1) { var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0); p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ]; l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ]; scaleTo(scale1 * scale0); } touchtime = null; translateTo(p0, l0); zoomed(dispatch); } function ended() { if (d3.event.touches.length) { var changed = d3.event.changedTouches; for (var i = 0, n = changed.length; i < n; ++i) { delete locations0[changed[i].identifier]; } for (var identifier in locations0) { return void relocate(); } } d3.selectAll(targets).on(zoomName, null); subject.on(mousedown, mousedowned).on(touchstart, touchstarted); dragRestore(); zoomended(dispatch); } } function mousewheeled() { var dispatch = event.of(this, arguments); if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch); mousewheelTimer = setTimeout(function() { mousewheelTimer = null; zoomended(dispatch); }, 50); d3_eventPreventDefault(); scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k); translateTo(center0, translate0); zoomed(dispatch); } function dblclicked() { var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2; zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1); } return d3.rebind(zoom, event, "on"); }; var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel; d3.color = d3_color; function d3_color() {} d3_color.prototype.toString = function() { return this.rgb() + ""; }; d3.hsl = d3_hsl; function d3_hsl(h, s, l) { return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l); } var d3_hslPrototype = d3_hsl.prototype = new d3_color(); d3_hslPrototype.brighter = function(k) { k = Math.pow(.7, arguments.length ? k : 1); return new d3_hsl(this.h, this.s, this.l / k); }; d3_hslPrototype.darker = function(k) { k = Math.pow(.7, arguments.length ? k : 1); return new d3_hsl(this.h, this.s, k * this.l); }; d3_hslPrototype.rgb = function() { return d3_hsl_rgb(this.h, this.s, this.l); }; function d3_hsl_rgb(h, s, l) { var m1, m2; h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h; s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s; l = l < 0 ? 0 : l > 1 ? 1 : l; m2 = l <= .5 ? l * (1 + s) : l + s - l * s; m1 = 2 * l - m2; function v(h) { if (h > 360) h -= 360; else if (h < 0) h += 360; if (h < 60) return m1 + (m2 - m1) * h / 60; if (h < 180) return m2; if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60; return m1; } function vv(h) { return Math.round(v(h) * 255); } return new d3_rgb(vv(h + 120), vv(h), vv(h - 120)); } d3.hcl = d3_hcl; function d3_hcl(h, c, l) { return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l); } var d3_hclPrototype = d3_hcl.prototype = new d3_color(); d3_hclPrototype.brighter = function(k) { return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1))); }; d3_hclPrototype.darker = function(k) { return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1))); }; d3_hclPrototype.rgb = function() { return d3_hcl_lab(this.h, this.c, this.l).rgb(); }; function d3_hcl_lab(h, c, l) { if (isNaN(h)) h = 0; if (isNaN(c)) c = 0; return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c); } d3.lab = d3_lab; function d3_lab(l, a, b) { return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b); } var d3_lab_K = 18; var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883; var d3_labPrototype = d3_lab.prototype = new d3_color(); d3_labPrototype.brighter = function(k) { return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b); }; d3_labPrototype.darker = function(k) { return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b); }; d3_labPrototype.rgb = function() { return d3_lab_rgb(this.l, this.a, this.b); }; function d3_lab_rgb(l, a, b) { var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200; x = d3_lab_xyz(x) * d3_lab_X; y = d3_lab_xyz(y) * d3_lab_Y; z = d3_lab_xyz(z) * d3_lab_Z; return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z)); } function d3_lab_hcl(l, a, b) { return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l); } function d3_lab_xyz(x) { return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037; } function d3_xyz_lab(x) { return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29; } function d3_xyz_rgb(r) { return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055)); } d3.rgb = d3_rgb; function d3_rgb(r, g, b) { return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b); } function d3_rgbNumber(value) { return new d3_rgb(value >> 16, value >> 8 & 255, value & 255); } function d3_rgbString(value) { return d3_rgbNumber(value) + ""; } var d3_rgbPrototype = d3_rgb.prototype = new d3_color(); d3_rgbPrototype.brighter = function(k) { k = Math.pow(.7, arguments.length ? k : 1); var r = this.r, g = this.g, b = this.b, i = 30; if (!r && !g && !b) return new d3_rgb(i, i, i); if (r && r < i) r = i; if (g && g < i) g = i; if (b && b < i) b = i; return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k)); }; d3_rgbPrototype.darker = function(k) { k = Math.pow(.7, arguments.length ? k : 1); return new d3_rgb(k * this.r, k * this.g, k * this.b); }; d3_rgbPrototype.hsl = function() { return d3_rgb_hsl(this.r, this.g, this.b); }; d3_rgbPrototype.toString = function() { return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b); }; function d3_rgb_hex(v) { return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16); } function d3_rgb_parse(format, rgb, hsl) { var r = 0, g = 0, b = 0, m1, m2, color; m1 = /([a-z]+)\((.*)\)/.exec(format = format.toLowerCase()); if (m1) { m2 = m1[2].split(","); switch (m1[1]) { case "hsl": { return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100); } case "rgb": { return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2])); } } } if (color = d3_rgb_names.get(format)) { return rgb(color.r, color.g, color.b); } if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.slice(1), 16))) { if (format.length === 4) { r = (color & 3840) >> 4; r = r >> 4 | r; g = color & 240; g = g >> 4 | g; b = color & 15; b = b << 4 | b; } else if (format.length === 7) { r = (color & 16711680) >> 16; g = (color & 65280) >> 8; b = color & 255; } } return rgb(r, g, b); } function d3_rgb_hsl(r, g, b) { var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2; if (d) { s = l < .5 ? d / (max + min) : d / (2 - max - min); if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4; h *= 60; } else { h = NaN; s = l > 0 && l < 1 ? 0 : h; } return new d3_hsl(h, s, l); } function d3_rgb_lab(r, g, b) { r = d3_rgb_xyz(r); g = d3_rgb_xyz(g); b = d3_rgb_xyz(b); var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z); return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z)); } function d3_rgb_xyz(r) { return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4); } function d3_rgb_parseNumber(c) { var f = parseFloat(c); return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f; } var d3_rgb_names = d3.map({ aliceblue: 15792383, antiquewhite: 16444375, aqua: 65535, aquamarine: 8388564, azure: 15794175, beige: 16119260, bisque: 16770244, black: 0, blanchedalmond: 16772045, blue: 255, blueviolet: 9055202, brown: 10824234, burlywood: 14596231, cadetblue: 6266528, chartreuse: 8388352, chocolate: 13789470, coral: 16744272, cornflowerblue: 6591981, cornsilk: 16775388, crimson: 14423100, cyan: 65535, darkblue: 139, darkcyan: 35723, darkgoldenrod: 12092939, darkgray: 11119017, darkgreen: 25600, darkgrey: 11119017, darkkhaki: 12433259, darkmagenta: 9109643, darkolivegreen: 5597999, darkorange: 16747520, darkorchid: 10040012, darkred: 9109504, darksalmon: 15308410, darkseagreen: 9419919, darkslateblue: 4734347, darkslategray: 3100495, darkslategrey: 3100495, darkturquoise: 52945, darkviolet: 9699539, deeppink: 16716947, deepskyblue: 49151, dimgray: 6908265, dimgrey: 6908265, dodgerblue: 2003199, firebrick: 11674146, floralwhite: 16775920, forestgreen: 2263842, fuchsia: 16711935, gainsboro: 14474460, ghostwhite: 16316671, gold: 16766720, goldenrod: 14329120, gray: 8421504, green: 32768, greenyellow: 11403055, grey: 8421504, honeydew: 15794160, hotpink: 16738740, indianred: 13458524, indigo: 4915330, ivory: 16777200, khaki: 15787660, lavender: 15132410, lavenderblush: 16773365, lawngreen: 8190976, lemonchiffon: 16775885, lightblue: 11393254, lightcoral: 15761536, lightcyan: 14745599, lightgoldenrodyellow: 16448210, lightgray: 13882323, lightgreen: 9498256, lightgrey: 13882323, lightpink: 16758465, lightsalmon: 16752762, lightseagreen: 2142890, lightskyblue: 8900346, lightslategray: 7833753, lightslategrey: 7833753, lightsteelblue: 11584734, lightyellow: 16777184, lime: 65280, limegreen: 3329330, linen: 16445670, magenta: 16711935, maroon: 8388608, mediumaquamarine: 6737322, mediumblue: 205, mediumorchid: 12211667, mediumpurple: 9662683, mediumseagreen: 3978097, mediumslateblue: 8087790, mediumspringgreen: 64154, mediumturquoise: 4772300, mediumvioletred: 13047173, midnightblue: 1644912, mintcream: 16121850, mistyrose: 16770273, moccasin: 16770229, navajowhite: 16768685, navy: 128, oldlace: 16643558, olive: 8421376, olivedrab: 7048739, orange: 16753920, orangered: 16729344, orchid: 14315734, palegoldenrod: 15657130, palegreen: 10025880, paleturquoise: 11529966, palevioletred: 14381203, papayawhip: 16773077, peachpuff: 16767673, peru: 13468991, pink: 16761035, plum: 14524637, powderblue: 11591910, purple: 8388736, rebeccapurple: 6697881, red: 16711680, rosybrown: 12357519, royalblue: 4286945, saddlebrown: 9127187, salmon: 16416882, sandybrown: 16032864, seagreen: 3050327, seashell: 16774638, sienna: 10506797, silver: 12632256, skyblue: 8900331, slateblue: 6970061, slategray: 7372944, slategrey: 7372944, snow: 16775930, springgreen: 65407, steelblue: 4620980, tan: 13808780, teal: 32896, thistle: 14204888, tomato: 16737095, turquoise: 4251856, violet: 15631086, wheat: 16113331, white: 16777215, whitesmoke: 16119285, yellow: 16776960, yellowgreen: 10145074 }); d3_rgb_names.forEach(function(key, value) { d3_rgb_names.set(key, d3_rgbNumber(value)); }); function d3_functor(v) { return typeof v === "function" ? v : function() { return v; }; } d3.functor = d3_functor; d3.xhr = d3_xhrType(d3_identity); function d3_xhrType(response) { return function(url, mimeType, callback) { if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType, mimeType = null; return d3_xhr(url, mimeType, response, callback); }; } function d3_xhr(url, mimeType, response, callback) { var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null; if (this.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest(); "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() { request.readyState > 3 && respond(); }; function respond() { var status = request.status, result; if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) { try { result = response.call(xhr, request); } catch (e) { dispatch.error.call(xhr, e); return; } dispatch.load.call(xhr, result); } else { dispatch.error.call(xhr, request); } } request.onprogress = function(event) { var o = d3.event; d3.event = event; try { dispatch.progress.call(xhr, request); } finally { d3.event = o; } }; xhr.header = function(name, value) { name = (name + "").toLowerCase(); if (arguments.length < 2) return headers[name]; if (value == null) delete headers[name]; else headers[name] = value + ""; return xhr; }; xhr.mimeType = function(value) { if (!arguments.length) return mimeType; mimeType = value == null ? null : value + ""; return xhr; }; xhr.responseType = function(value) { if (!arguments.length) return responseType; responseType = value; return xhr; }; xhr.response = function(value) { response = value; return xhr; }; [ "get", "post" ].forEach(function(method) { xhr[method] = function() { return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments))); }; }); xhr.send = function(method, data, callback) { if (arguments.length === 2 && typeof data === "function") callback = data, data = null; request.open(method, url, true); if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*"; if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]); if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType); if (responseType != null) request.responseType = responseType; if (callback != null) xhr.on("error", callback).on("load", function(request) { callback(null, request); }); dispatch.beforesend.call(xhr, request); request.send(data == null ? null : data); return xhr; }; xhr.abort = function() { request.abort(); return xhr; }; d3.rebind(xhr, dispatch, "on"); return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback)); } function d3_xhr_fixCallback(callback) { return callback.length === 1 ? function(error, request) { callback(error == null ? request : null); } : callback; } function d3_xhrHasResponse(request) { var type = request.responseType; return type && type !== "text" ? request.response : request.responseText; } d3.dsv = function(delimiter, mimeType) { var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0); function dsv(url, row, callback) { if (arguments.length < 3) callback = row, row = null; var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback); xhr.row = function(_) { return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row; }; return xhr; } function response(request) { return dsv.parse(request.responseText); } function typedResponse(f) { return function(request) { return dsv.parse(request.responseText, f); }; } dsv.parse = function(text, f) { var o; return dsv.parseRows(text, function(row, i) { if (o) return o(row, i - 1); var a = new Function("d", "return {" + row.map(function(name, i) { return JSON.stringify(name) + ": d[" + i + "]"; }).join(",") + "}"); o = f ? function(row, i) { return f(a(row), i); } : a; }); }; dsv.parseRows = function(text, f) { var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol; function token() { if (I >= N) return EOF; if (eol) return eol = false, EOL; var j = I; if (text.charCodeAt(j) === 34) { var i = j; while (i++ < N) { if (text.charCodeAt(i) === 34) { if (text.charCodeAt(i + 1) !== 34) break; ++i; } } I = i + 2; var c = text.charCodeAt(i + 1); if (c === 13) { eol = true; if (text.charCodeAt(i + 2) === 10) ++I; } else if (c === 10) { eol = true; } return text.slice(j + 1, i).replace(/""/g, '"'); } while (I < N) { var c = text.charCodeAt(I++), k = 1; if (c === 10) eol = true; else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } else if (c !== delimiterCode) continue; return text.slice(j, I - k); } return text.slice(j); } while ((t = token()) !== EOF) { var a = []; while (t !== EOL && t !== EOF) { a.push(t); t = token(); } if (f && (a = f(a, n++)) == null) continue; rows.push(a); } return rows; }; dsv.format = function(rows) { if (Array.isArray(rows[0])) return dsv.formatRows(rows); var fieldSet = new d3_Set(), fields = []; rows.forEach(function(row) { for (var field in row) { if (!fieldSet.has(field)) { fields.push(fieldSet.add(field)); } } }); return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) { return fields.map(function(field) { return formatValue(row[field]); }).join(delimiter); })).join("\n"); }; dsv.formatRows = function(rows) { return rows.map(formatRow).join("\n"); }; function formatRow(row) { return row.map(formatValue).join(delimiter); } function formatValue(text) { return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text; } return dsv; }; d3.csv = d3.dsv(",", "text/csv"); d3.tsv = d3.dsv(" ", "text/tab-separated-values"); var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_frame = this[d3_vendorSymbol(this, "requestAnimationFrame")] || function(callback) { setTimeout(callback, 17); }; d3.timer = function() { d3_timer.apply(this, arguments); }; function d3_timer(callback, delay, then) { var n = arguments.length; if (n < 2) delay = 0; if (n < 3) then = Date.now(); var time = then + delay, timer = { c: callback, t: time, n: null }; if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer; d3_timer_queueTail = timer; if (!d3_timer_interval) { d3_timer_timeout = clearTimeout(d3_timer_timeout); d3_timer_interval = 1; d3_timer_frame(d3_timer_step); } return timer; } function d3_timer_step() { var now = d3_timer_mark(), delay = d3_timer_sweep() - now; if (delay > 24) { if (isFinite(delay)) { clearTimeout(d3_timer_timeout); d3_timer_timeout = setTimeout(d3_timer_step, delay); } d3_timer_interval = 0; } else { d3_timer_interval = 1; d3_timer_frame(d3_timer_step); } } d3.timer.flush = function() { d3_timer_mark(); d3_timer_sweep(); }; function d3_timer_mark() { var now = Date.now(), timer = d3_timer_queueHead; while (timer) { if (now >= timer.t && timer.c(now - timer.t)) timer.c = null; timer = timer.n; } return now; } function d3_timer_sweep() { var t0, t1 = d3_timer_queueHead, time = Infinity; while (t1) { if (t1.c) { if (t1.t < time) time = t1.t; t1 = (t0 = t1).n; } else { t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n; } } d3_timer_queueTail = t0; return time; } function d3_format_precision(x, p) { return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1); } d3.round = function(x, n) { return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x); }; var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix); d3.formatPrefix = function(value, precision) { var i = 0; if (value = +value) { if (value < 0) value *= -1; if (precision) value = d3.round(value, d3_format_precision(value, precision)); i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10); i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3)); } return d3_formatPrefixes[8 + i / 3]; }; function d3_formatPrefix(d, i) { var k = Math.pow(10, abs(8 - i) * 3); return { scale: i > 8 ? function(d) { return d / k; } : function(d) { return d * k; }, symbol: d }; } function d3_locale_numberFormat(locale) { var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) { var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0; while (i > 0 && g > 0) { if (length + g + 1 > width) g = Math.max(1, width - length); t.push(value.substring(i -= g, i + g)); if ((length += g + 1) > width) break; g = locale_grouping[j = (j + 1) % locale_grouping.length]; } return t.reverse().join(locale_thousands); } : d3_identity; return function(specifier) { var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "-", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false, exponent = true; if (precision) precision = +precision.substring(1); if (zfill || fill === "0" && align === "=") { zfill = fill = "0"; align = "="; } switch (type) { case "n": comma = true; type = "g"; break; case "%": scale = 100; suffix = "%"; type = "f"; break; case "p": scale = 100; suffix = "%"; type = "r"; break; case "b": case "o": case "x": case "X": if (symbol === "#") prefix = "0" + type.toLowerCase(); case "c": exponent = false; case "d": integer = true; precision = 0; break; case "s": scale = -1; type = "r"; break; } if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1]; if (type == "r" && !precision) type = "g"; if (precision != null) { if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision)); } type = d3_format_types.get(type) || d3_format_typeDefault; var zcomma = zfill && comma; return function(value) { var fullSuffix = suffix; if (integer && value % 1) return ""; var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign === "-" ? "" : sign; if (scale < 0) { var unit = d3.formatPrefix(value, precision); value = unit.scale(value); fullSuffix = unit.symbol + suffix; } else { value *= scale; } value = type(value, precision); var i = value.lastIndexOf("."), before, after; if (i < 0) { var j = exponent ? value.lastIndexOf("e") : -1; if (j < 0) before = value, after = ""; else before = value.substring(0, j), after = value.substring(j); } else { before = value.substring(0, i); after = locale_decimal + value.substring(i + 1); } if (!zfill && comma) before = formatGroup(before, Infinity); var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : ""; if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity); negative += prefix; value = before + after; return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix; }; }; } var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i; var d3_format_types = d3.map({ b: function(x) { return x.toString(2); }, c: function(x) { return String.fromCharCode(x); }, o: function(x) { return x.toString(8); }, x: function(x) { return x.toString(16); }, X: function(x) { return x.toString(16).toUpperCase(); }, g: function(x, p) { return x.toPrecision(p); }, e: function(x, p) { return x.toExponential(p); }, f: function(x, p) { return x.toFixed(p); }, r: function(x, p) { return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p)))); } }); function d3_format_typeDefault(x) { return x + ""; } var d3_time = d3.time = {}, d3_date = Date; function d3_date_utc() { this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]); } d3_date_utc.prototype = { getDate: function() { return this._.getUTCDate(); }, getDay: function() { return this._.getUTCDay(); }, getFullYear: function() { return this._.getUTCFullYear(); }, getHours: function() { return this._.getUTCHours(); }, getMilliseconds: function() { return this._.getUTCMilliseconds(); }, getMinutes: function() { return this._.getUTCMinutes(); }, getMonth: function() { return this._.getUTCMonth(); }, getSeconds: function() { return this._.getUTCSeconds(); }, getTime: function() { return this._.getTime(); }, getTimezoneOffset: function() { return 0; }, valueOf: function() { return this._.valueOf(); }, setDate: function() { d3_time_prototype.setUTCDate.apply(this._, arguments); }, setDay: function() { d3_time_prototype.setUTCDay.apply(this._, arguments); }, setFullYear: function() { d3_time_prototype.setUTCFullYear.apply(this._, arguments); }, setHours: function() { d3_time_prototype.setUTCHours.apply(this._, arguments); }, setMilliseconds: function() { d3_time_prototype.setUTCMilliseconds.apply(this._, arguments); }, setMinutes: function() { d3_time_prototype.setUTCMinutes.apply(this._, arguments); }, setMonth: function() { d3_time_prototype.setUTCMonth.apply(this._, arguments); }, setSeconds: function() { d3_time_prototype.setUTCSeconds.apply(this._, arguments); }, setTime: function() { d3_time_prototype.setTime.apply(this._, arguments); } }; var d3_time_prototype = Date.prototype; function d3_time_interval(local, step, number) { function round(date) { var d0 = local(date), d1 = offset(d0, 1); return date - d0 < d1 - date ? d0 : d1; } function ceil(date) { step(date = local(new d3_date(date - 1)), 1); return date; } function offset(date, k) { step(date = new d3_date(+date), k); return date; } function range(t0, t1, dt) { var time = ceil(t0), times = []; if (dt > 1) { while (time < t1) { if (!(number(time) % dt)) times.push(new Date(+time)); step(time, 1); } } else { while (time < t1) times.push(new Date(+time)), step(time, 1); } return times; } function range_utc(t0, t1, dt) { try { d3_date = d3_date_utc; var utc = new d3_date_utc(); utc._ = t0; return range(utc, t1, dt); } finally { d3_date = Date; } } local.floor = local; local.round = round; local.ceil = ceil; local.offset = offset; local.range = range; var utc = local.utc = d3_time_interval_utc(local); utc.floor = utc; utc.round = d3_time_interval_utc(round); utc.ceil = d3_time_interval_utc(ceil); utc.offset = d3_time_interval_utc(offset); utc.range = range_utc; return local; } function d3_time_interval_utc(method) { return function(date, k) { try { d3_date = d3_date_utc; var utc = new d3_date_utc(); utc._ = date; return method(utc, k)._; } finally { d3_date = Date; } }; } d3_time.year = d3_time_interval(function(date) { date = d3_time.day(date); date.setMonth(0, 1); return date; }, function(date, offset) { date.setFullYear(date.getFullYear() + offset); }, function(date) { return date.getFullYear(); }); d3_time.years = d3_time.year.range; d3_time.years.utc = d3_time.year.utc.range; d3_time.day = d3_time_interval(function(date) { var day = new d3_date(2e3, 0); day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate()); return day; }, function(date, offset) { date.setDate(date.getDate() + offset); }, function(date) { return date.getDate() - 1; }); d3_time.days = d3_time.day.range; d3_time.days.utc = d3_time.day.utc.range; d3_time.dayOfYear = function(date) { var year = d3_time.year(date); return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5); }; [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) { i = 7 - i; var interval = d3_time[day] = d3_time_interval(function(date) { (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7); return date; }, function(date, offset) { date.setDate(date.getDate() + Math.floor(offset) * 7); }, function(date) { var day = d3_time.year(date).getDay(); return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i); }); d3_time[day + "s"] = interval.range; d3_time[day + "s"].utc = interval.utc.range; d3_time[day + "OfYear"] = function(date) { var day = d3_time.year(date).getDay(); return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7); }; }); d3_time.week = d3_time.sunday; d3_time.weeks = d3_time.sunday.range; d3_time.weeks.utc = d3_time.sunday.utc.range; d3_time.weekOfYear = d3_time.sundayOfYear; function d3_locale_timeFormat(locale) { var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths; function d3_time_format(template) { var n = template.length; function format(date) { var string = [], i = -1, j = 0, c, p, f; while (++i < n) { if (template.charCodeAt(i) === 37) { string.push(template.slice(j, i)); if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i); if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p); string.push(c); j = i + 1; } } string.push(template.slice(j, i)); return string.join(""); } format.parse = function(string) { var d = { y: 1900, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0, Z: null }, i = d3_time_parse(d, template, string, 0); if (i != string.length) return null; if ("p" in d) d.H = d.H % 12 + d.p * 12; var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)(); if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("W" in d || "U" in d) { if (!("w" in d)) d.w = "W" in d ? 1 : 0; date.setFullYear(d.y, 0, 1); date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7); } else date.setFullYear(d.y, d.m, d.d); date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L); return localZ ? date._ : date; }; format.toString = function() { return template; }; return format; } function d3_time_parse(date, template, string, j) { var c, p, t, i = 0, n = template.length, m = string.length; while (i < n) { if (j >= m) return -1; c = template.charCodeAt(i++); if (c === 37) { t = template.charAt(i++); p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t]; if (!p || (j = p(date, string, j)) < 0) return -1; } else if (c != string.charCodeAt(j++)) { return -1; } } return j; } d3_time_format.utc = function(template) { var local = d3_time_format(template); function format(date) { try { d3_date = d3_date_utc; var utc = new d3_date(); utc._ = date; return local(utc); } finally { d3_date = Date; } } format.parse = function(string) { try { d3_date = d3_date_utc; var date = local.parse(string); return date && date._; } finally { d3_date = Date; } }; format.toString = local.toString; return format; }; d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti; var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths); locale_periods.forEach(function(p, i) { d3_time_periodLookup.set(p.toLowerCase(), i); }); var d3_time_formats = { a: function(d) { return locale_shortDays[d.getDay()]; }, A: function(d) { return locale_days[d.getDay()]; }, b: function(d) { return locale_shortMonths[d.getMonth()]; }, B: function(d) { return locale_months[d.getMonth()]; }, c: d3_time_format(locale_dateTime), d: function(d, p) { return d3_time_formatPad(d.getDate(), p, 2); }, e: function(d, p) { return d3_time_formatPad(d.getDate(), p, 2); }, H: function(d, p) { return d3_time_formatPad(d.getHours(), p, 2); }, I: function(d, p) { return d3_time_formatPad(d.getHours() % 12 || 12, p, 2); }, j: function(d, p) { return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3); }, L: function(d, p) { return d3_time_formatPad(d.getMilliseconds(), p, 3); }, m: function(d, p) { return d3_time_formatPad(d.getMonth() + 1, p, 2); }, M: function(d, p) { return d3_time_formatPad(d.getMinutes(), p, 2); }, p: function(d) { return locale_periods[+(d.getHours() >= 12)]; }, S: function(d, p) { return d3_time_formatPad(d.getSeconds(), p, 2); }, U: function(d, p) { return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2); }, w: function(d) { return d.getDay(); }, W: function(d, p) { return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2); }, x: d3_time_format(locale_date), X: d3_time_format(locale_time), y: function(d, p) { return d3_time_formatPad(d.getFullYear() % 100, p, 2); }, Y: function(d, p) { return d3_time_formatPad(d.getFullYear() % 1e4, p, 4); }, Z: d3_time_zone, "%": function() { return "%"; } }; var d3_time_parsers = { a: d3_time_parseWeekdayAbbrev, A: d3_time_parseWeekday, b: d3_time_parseMonthAbbrev, B: d3_time_parseMonth, c: d3_time_parseLocaleFull, d: d3_time_parseDay, e: d3_time_parseDay, H: d3_time_parseHour24, I: d3_time_parseHour24, j: d3_time_parseDayOfYear, L: d3_time_parseMilliseconds, m: d3_time_parseMonthNumber, M: d3_time_parseMinutes, p: d3_time_parseAmPm, S: d3_time_parseSeconds, U: d3_time_parseWeekNumberSunday, w: d3_time_parseWeekdayNumber, W: d3_time_parseWeekNumberMonday, x: d3_time_parseLocaleDate, X: d3_time_parseLocaleTime, y: d3_time_parseYear, Y: d3_time_parseFullYear, Z: d3_time_parseZone, "%": d3_time_parseLiteralPercent }; function d3_time_parseWeekdayAbbrev(date, string, i) { d3_time_dayAbbrevRe.lastIndex = 0; var n = d3_time_dayAbbrevRe.exec(string.slice(i)); return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1; } function d3_time_parseWeekday(date, string, i) { d3_time_dayRe.lastIndex = 0; var n = d3_time_dayRe.exec(string.slice(i)); return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1; } function d3_time_parseMonthAbbrev(date, string, i) { d3_time_monthAbbrevRe.lastIndex = 0; var n = d3_time_monthAbbrevRe.exec(string.slice(i)); return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1; } function d3_time_parseMonth(date, string, i) { d3_time_monthRe.lastIndex = 0; var n = d3_time_monthRe.exec(string.slice(i)); return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1; } function d3_time_parseLocaleFull(date, string, i) { return d3_time_parse(date, d3_time_formats.c.toString(), string, i); } function d3_time_parseLocaleDate(date, string, i) { return d3_time_parse(date, d3_time_formats.x.toString(), string, i); } function d3_time_parseLocaleTime(date, string, i) { return d3_time_parse(date, d3_time_formats.X.toString(), string, i); } function d3_time_parseAmPm(date, string, i) { var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase()); return n == null ? -1 : (date.p = n, i); } return d3_time_format; } var d3_time_formatPads = { "-": "", _: " ", "0": "0" }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/; function d3_time_formatPad(value, fill, width) { var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length; return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string); } function d3_time_formatRe(names) { return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i"); } function d3_time_formatLookup(names) { var map = new d3_Map(), i = -1, n = names.length; while (++i < n) map.set(names[i].toLowerCase(), i); return map; } function d3_time_parseWeekdayNumber(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 1)); return n ? (date.w = +n[0], i + n[0].length) : -1; } function d3_time_parseWeekNumberSunday(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i)); return n ? (date.U = +n[0], i + n[0].length) : -1; } function d3_time_parseWeekNumberMonday(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i)); return n ? (date.W = +n[0], i + n[0].length) : -1; } function d3_time_parseFullYear(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 4)); return n ? (date.y = +n[0], i + n[0].length) : -1; } function d3_time_parseYear(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1; } function d3_time_parseZone(date, string, i) { return /^[+-]\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, i + 5) : -1; } function d3_time_expandYear(d) { return d + (d > 68 ? 1900 : 2e3); } function d3_time_parseMonthNumber(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.m = n[0] - 1, i + n[0].length) : -1; } function d3_time_parseDay(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.d = +n[0], i + n[0].length) : -1; } function d3_time_parseDayOfYear(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 3)); return n ? (date.j = +n[0], i + n[0].length) : -1; } function d3_time_parseHour24(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.H = +n[0], i + n[0].length) : -1; } function d3_time_parseMinutes(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.M = +n[0], i + n[0].length) : -1; } function d3_time_parseSeconds(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 2)); return n ? (date.S = +n[0], i + n[0].length) : -1; } function d3_time_parseMilliseconds(date, string, i) { d3_time_numberRe.lastIndex = 0; var n = d3_time_numberRe.exec(string.slice(i, i + 3)); return n ? (date.L = +n[0], i + n[0].length) : -1; } function d3_time_zone(d) { var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = abs(z) / 60 | 0, zm = abs(z) % 60; return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2); } function d3_time_parseLiteralPercent(date, string, i) { d3_time_percentRe.lastIndex = 0; var n = d3_time_percentRe.exec(string.slice(i, i + 1)); return n ? i + n[0].length : -1; } function d3_time_formatMulti(formats) { var n = formats.length, i = -1; while (++i < n) formats[i][0] = this(formats[i][0]); return function(date) { var i = 0, f = formats[i]; while (!f[1](date)) f = formats[++i]; return f[0](date); }; } d3.locale = function(locale) { return { numberFormat: d3_locale_numberFormat(locale), timeFormat: d3_locale_timeFormat(locale) }; }; var d3_locale_enUS = d3.locale({ decimal: ".", thousands: ",", grouping: [ 3 ], currency: [ "$", "" ], dateTime: "%a %b %e %X %Y", date: "%m/%d/%Y", time: "%H:%M:%S", periods: [ "AM", "PM" ], days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ], months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ] }); d3.format = d3_locale_enUS.numberFormat; d3.geo = {}; function d3_adder() {} d3_adder.prototype = { s: 0, t: 0, add: function(y) { d3_adderSum(y, this.t, d3_adderTemp); d3_adderSum(d3_adderTemp.s, this.s, this); if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t; }, reset: function() { this.s = this.t = 0; }, valueOf: function() { return this.s; } }; var d3_adderTemp = new d3_adder(); function d3_adderSum(a, b, o) { var x = o.s = a + b, bv = x - a, av = x - bv; o.t = a - av + (b - bv); } d3.geo.stream = function(object, listener) { if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) { d3_geo_streamObjectType[object.type](object, listener); } else { d3_geo_streamGeometry(object, listener); } }; function d3_geo_streamGeometry(geometry, listener) { if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) { d3_geo_streamGeometryType[geometry.type](geometry, listener); } } var d3_geo_streamObjectType = { Feature: function(feature, listener) { d3_geo_streamGeometry(feature.geometry, listener); }, FeatureCollection: function(object, listener) { var features = object.features, i = -1, n = features.length; while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener); } }; var d3_geo_streamGeometryType = { Sphere: function(object, listener) { listener.sphere(); }, Point: function(object, listener) { object = object.coordinates; listener.point(object[0], object[1], object[2]); }, MultiPoint: function(object, listener) { var coordinates = object.coordinates, i = -1, n = coordinates.length; while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]); }, LineString: function(object, listener) { d3_geo_streamLine(object.coordinates, listener, 0); }, MultiLineString: function(object, listener) { var coordinates = object.coordinates, i = -1, n = coordinates.length; while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0); }, Polygon: function(object, listener) { d3_geo_streamPolygon(object.coordinates, listener); }, MultiPolygon: function(object, listener) { var coordinates = object.coordinates, i = -1, n = coordinates.length; while (++i < n) d3_geo_streamPolygon(coordinates[i], listener); }, GeometryCollection: function(object, listener) { var geometries = object.geometries, i = -1, n = geometries.length; while (++i < n) d3_geo_streamGeometry(geometries[i], listener); } }; function d3_geo_streamLine(coordinates, listener, closed) { var i = -1, n = coordinates.length - closed, coordinate; listener.lineStart(); while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]); listener.lineEnd(); } function d3_geo_streamPolygon(coordinates, listener) { var i = -1, n = coordinates.length; listener.polygonStart(); while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1); listener.polygonEnd(); } d3.geo.area = function(object) { d3_geo_areaSum = 0; d3.geo.stream(object, d3_geo_area); return d3_geo_areaSum; }; var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder(); var d3_geo_area = { sphere: function() { d3_geo_areaSum += 4 * π; }, point: d3_noop, lineStart: d3_noop, lineEnd: d3_noop, polygonStart: function() { d3_geo_areaRingSum.reset(); d3_geo_area.lineStart = d3_geo_areaRingStart; }, polygonEnd: function() { var area = 2 * d3_geo_areaRingSum; d3_geo_areaSum += area < 0 ? 4 * π + area : area; d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop; } }; function d3_geo_areaRingStart() { var λ00, φ00, λ0, cosφ0, sinφ0; d3_geo_area.point = function(λ, φ) { d3_geo_area.point = nextPoint; λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), sinφ0 = Math.sin(φ); }; function nextPoint(λ, φ) { λ *= d3_radians; φ = φ * d3_radians / 2 + π / 4; var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ); d3_geo_areaRingSum.add(Math.atan2(v, u)); λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ; } d3_geo_area.lineEnd = function() { nextPoint(λ00, φ00); }; } function d3_geo_cartesian(spherical) { var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ); return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ]; } function d3_geo_cartesianDot(a, b) { return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; } function d3_geo_cartesianCross(a, b) { return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ]; } function d3_geo_cartesianAdd(a, b) { a[0] += b[0]; a[1] += b[1]; a[2] += b[2]; } function d3_geo_cartesianScale(vector, k) { return [ vector[0] * k, vector[1] * k, vector[2] * k ]; } function d3_geo_cartesianNormalize(d) { var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]); d[0] /= l; d[1] /= l; d[2] /= l; } function d3_geo_spherical(cartesian) { return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ]; } function d3_geo_sphericalEqual(a, b) { return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε; } d3.geo.bounds = function() { var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range; var bound = { point: point, lineStart: lineStart, lineEnd: lineEnd, polygonStart: function() { bound.point = ringPoint; bound.lineStart = ringStart; bound.lineEnd = ringEnd; dλSum = 0; d3_geo_area.polygonStart(); }, polygonEnd: function() { d3_geo_area.polygonEnd(); bound.point = point; bound.lineStart = lineStart; bound.lineEnd = lineEnd; if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90; range[0] = λ0, range[1] = λ1; } }; function point(λ, φ) { ranges.push(range = [ λ0 = λ, λ1 = λ ]); if (φ < φ0) φ0 = φ; if (φ > φ1) φ1 = φ; } function linePoint(λ, φ) { var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]); if (p0) { var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal); d3_geo_cartesianNormalize(inflection); inflection = d3_geo_spherical(inflection); var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180; if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) { var φi = inflection[1] * d3_degrees; if (φi > φ1) φ1 = φi; } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) { var φi = -inflection[1] * d3_degrees; if (φi < φ0) φ0 = φi; } else { if (φ < φ0) φ0 = φ; if (φ > φ1) φ1 = φ; } if (antimeridian) { if (λ < λ_) { if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ; } else { if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ; } } else { if (λ1 >= λ0) { if (λ < λ0) λ0 = λ; if (λ > λ1) λ1 = λ; } else { if (λ > λ_) { if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ; } else { if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ; } } } } else { point(λ, φ); } p0 = p, λ_ = λ; } function lineStart() { bound.point = linePoint; } function lineEnd() { range[0] = λ0, range[1] = λ1; bound.point = point; p0 = null; } function ringPoint(λ, φ) { if (p0) { var dλ = λ - λ_; dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ; } else λ__ = λ, φ__ = φ; d3_geo_area.point(λ, φ); linePoint(λ, φ); } function ringStart() { d3_geo_area.lineStart(); } function ringEnd() { ringPoint(λ__, φ__); d3_geo_area.lineEnd(); if (abs(dλSum) > ε) λ0 = -(λ1 = 180); range[0] = λ0, range[1] = λ1; p0 = null; } function angle(λ0, λ1) { return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1; } function compareRanges(a, b) { return a[0] - b[0]; } function withinRange(x, range) { return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x; } return function(feature) { φ1 = λ1 = -(λ0 = φ0 = Infinity); ranges = []; d3.geo.stream(feature, bound); var n = ranges.length; if (n) { ranges.sort(compareRanges); for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) { b = ranges[i]; if (withinRange(b[0], a) || withinRange(b[1], a)) { if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1]; if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0]; } else { merged.push(a = b); } } var best = -Infinity, dλ; for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) { b = merged[i]; if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1]; } } ranges = range = null; return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ]; }; }(); d3.geo.centroid = function(object) { d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0; d3.geo.stream(object, d3_geo_centroid); var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z; if (m < ε2) { x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1; if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0; m = x * x + y * y + z * z; if (m < ε2) return [ NaN, NaN ]; } return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ]; }; var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2; var d3_geo_centroid = { sphere: d3_noop, point: d3_geo_centroidPoint, lineStart: d3_geo_centroidLineStart, lineEnd: d3_geo_centroidLineEnd, polygonStart: function() { d3_geo_centroid.lineStart = d3_geo_centroidRingStart; }, polygonEnd: function() { d3_geo_centroid.lineStart = d3_geo_centroidLineStart; } }; function d3_geo_centroidPoint(λ, φ) { λ *= d3_radians; var cosφ = Math.cos(φ *= d3_radians); d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ)); } function d3_geo_centroidPointXYZ(x, y, z) { ++d3_geo_centroidW0; d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0; d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0; d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0; } function d3_geo_centroidLineStart() { var x0, y0, z0; d3_geo_centroid.point = function(λ, φ) { λ *= d3_radians; var cosφ = Math.cos(φ *= d3_radians); x0 = cosφ * Math.cos(λ); y0 = cosφ * Math.sin(λ); z0 = Math.sin(φ); d3_geo_centroid.point = nextPoint; d3_geo_centroidPointXYZ(x0, y0, z0); }; function nextPoint(λ, φ) { λ *= d3_radians; var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z); d3_geo_centroidW1 += w; d3_geo_centroidX1 += w * (x0 + (x0 = x)); d3_geo_centroidY1 += w * (y0 + (y0 = y)); d3_geo_centroidZ1 += w * (z0 + (z0 = z)); d3_geo_centroidPointXYZ(x0, y0, z0); } } function d3_geo_centroidLineEnd() { d3_geo_centroid.point = d3_geo_centroidPoint; } function d3_geo_centroidRingStart() { var λ00, φ00, x0, y0, z0; d3_geo_centroid.point = function(λ, φ) { λ00 = λ, φ00 = φ; d3_geo_centroid.point = nextPoint; λ *= d3_radians; var cosφ = Math.cos(φ *= d3_radians); x0 = cosφ * Math.cos(λ); y0 = cosφ * Math.sin(λ); z0 = Math.sin(φ); d3_geo_centroidPointXYZ(x0, y0, z0); }; d3_geo_centroid.lineEnd = function() { nextPoint(λ00, φ00); d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd; d3_geo_centroid.point = d3_geo_centroidPoint; }; function nextPoint(λ, φ) { λ *= d3_radians; var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u); d3_geo_centroidX2 += v * cx; d3_geo_centroidY2 += v * cy; d3_geo_centroidZ2 += v * cz; d3_geo_centroidW1 += w; d3_geo_centroidX1 += w * (x0 + (x0 = x)); d3_geo_centroidY1 += w * (y0 + (y0 = y)); d3_geo_centroidZ1 += w * (z0 + (z0 = z)); d3_geo_centroidPointXYZ(x0, y0, z0); } } function d3_geo_compose(a, b) { function compose(x, y) { return x = a(x, y), b(x[0], x[1]); } if (a.invert && b.invert) compose.invert = function(x, y) { return x = b.invert(x, y), x && a.invert(x[0], x[1]); }; return compose; } function d3_true() { return true; } function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) { var subject = [], clip = []; segments.forEach(function(segment) { if ((n = segment.length - 1) <= 0) return; var n, p0 = segment[0], p1 = segment[n]; if (d3_geo_sphericalEqual(p0, p1)) { listener.lineStart(); for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]); listener.lineEnd(); return; } var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false); a.o = b; subject.push(a); clip.push(b); a = new d3_geo_clipPolygonIntersection(p1, segment, null, false); b = new d3_geo_clipPolygonIntersection(p1, null, a, true); a.o = b; subject.push(a); clip.push(b); }); clip.sort(compare); d3_geo_clipPolygonLinkCircular(subject); d3_geo_clipPolygonLinkCircular(clip); if (!subject.length) return; for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) { clip[i].e = entry = !entry; } var start = subject[0], points, point; while (1) { var current = start, isSubject = true; while (current.v) if ((current = current.n) === start) return; points = current.z; listener.lineStart(); do { current.v = current.o.v = true; if (current.e) { if (isSubject) { for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]); } else { interpolate(current.x, current.n.x, 1, listener); } current = current.n; } else { if (isSubject) { points = current.p.z; for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]); } else { interpolate(current.x, current.p.x, -1, listener); } current = current.p; } current = current.o; points = current.z; isSubject = !isSubject; } while (!current.v); listener.lineEnd(); } } function d3_geo_clipPolygonLinkCircular(array) { if (!(n = array.length)) return; var n, i = 0, a = array[0], b; while (++i < n) { a.n = b = array[i]; b.p = a; a = b; } a.n = b = array[0]; b.p = a; } function d3_geo_clipPolygonIntersection(point, points, other, entry) { this.x = point; this.z = points; this.o = other; this.e = entry; this.v = false; this.n = this.p = null; } function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) { return function(rotate, listener) { var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]); var clip = { point: point, lineStart: lineStart, lineEnd: lineEnd, polygonStart: function() { clip.point = pointRing; clip.lineStart = ringStart; clip.lineEnd = ringEnd; segments = []; polygon = []; }, polygonEnd: function() { clip.point = point; clip.lineStart = lineStart; clip.lineEnd = lineEnd; segments = d3.merge(segments); var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon); if (segments.length) { if (!polygonStarted) listener.polygonStart(), polygonStarted = true; d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener); } else if (clipStartInside) { if (!polygonStarted) listener.polygonStart(), polygonStarted = true; listener.lineStart(); interpolate(null, null, 1, listener); listener.lineEnd(); } if (polygonStarted) listener.polygonEnd(), polygonStarted = false; segments = polygon = null; }, sphere: function() { listener.polygonStart(); listener.lineStart(); interpolate(null, null, 1, listener); listener.lineEnd(); listener.polygonEnd(); } }; function point(λ, φ) { var point = rotate(λ, φ); if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ); } function pointLine(λ, φ) { var point = rotate(λ, φ); line.point(point[0], point[1]); } function lineStart() { clip.point = pointLine; line.lineStart(); } function lineEnd() { clip.point = point; line.lineEnd(); } var segments; var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring; function pointRing(λ, φ) { ring.push([ λ, φ ]); var point = rotate(λ, φ); ringListener.point(point[0], point[1]); } function ringStart() { ringListener.lineStart(); ring = []; } function ringEnd() { pointRing(ring[0][0], ring[0][1]); ringListener.lineEnd(); var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length; ring.pop(); polygon.push(ring); ring = null; if (!n) return; if (clean & 1) { segment = ringSegments[0]; var n = segment.length - 1, i = -1, point; if (n > 0) { if (!polygonStarted) listener.polygonStart(), polygonStarted = true; listener.lineStart(); while (++i < n) listener.point((point = segment[i])[0], point[1]); listener.lineEnd(); } return; } if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift())); segments.push(ringSegments.filter(d3_geo_clipSegmentLength1)); } return clip; }; } function d3_geo_clipSegmentLength1(segment) { return segment.length > 1; } function d3_geo_clipBufferListener() { var lines = [], line; return { lineStart: function() { lines.push(line = []); }, point: function(λ, φ) { line.push([ λ, φ ]); }, lineEnd: d3_noop, buffer: function() { var buffer = lines; lines = []; line = null; return buffer; }, rejoin: function() { if (lines.length > 1) lines.push(lines.pop().concat(lines.shift())); } }; } function d3_geo_clipSort(a, b) { return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]); } var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]); function d3_geo_clipAntimeridianLine(listener) { var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean; return { lineStart: function() { listener.lineStart(); clean = 1; }, point: function(λ1, φ1) { var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0); if (abs(dλ - π) < ε) { listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ); listener.point(sλ0, φ0); listener.lineEnd(); listener.lineStart(); listener.point(sλ1, φ0); listener.point(λ1, φ0); clean = 0; } else if (sλ0 !== sλ1 && dλ >= π) { if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε; if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε; φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1); listener.point(sλ0, φ0); listener.lineEnd(); listener.lineStart(); listener.point(sλ1, φ0); clean = 0; } listener.point(λ0 = λ1, φ0 = φ1); sλ0 = sλ1; }, lineEnd: function() { listener.lineEnd(); λ0 = φ0 = NaN; }, clean: function() { return 2 - clean; } }; } function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) { var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1); return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2; } function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) { var φ; if (from == null) { φ = direction * halfπ; listener.point(-π, φ); listener.point(0, φ); listener.point(π, φ); listener.point(π, 0); listener.point(π, -φ); listener.point(0, -φ); listener.point(-π, -φ); listener.point(-π, 0); listener.point(-π, φ); } else if (abs(from[0] - to[0]) > ε) { var s = from[0] < to[0] ? π : -π; φ = direction * s / 2; listener.point(-s, φ); listener.point(0, φ); listener.point(s, φ); } else { listener.point(to[0], to[1]); } } function d3_geo_pointInPolygon(point, polygon) { var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0; d3_geo_areaRingSum.reset(); for (var i = 0, n = polygon.length; i < n; ++i) { var ring = polygon[i], m = ring.length; if (!m) continue; var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1; while (true) { if (j === m) j = 0; point = ring[j]; var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ; d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ))); polarAngle += antimeridian ? dλ + sdλ * τ : dλ; if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) { var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point)); d3_geo_cartesianNormalize(arc); var intersection = d3_geo_cartesianCross(meridianNormal, arc); d3_geo_cartesianNormalize(intersection); var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]); if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) { winding += antimeridian ^ dλ >= 0 ? 1 : -1; } } if (!j++) break; λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point; } } return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < -ε) ^ winding & 1; } function d3_geo_clipCircle(radius) { var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians); return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]); function visible(λ, φ) { return Math.cos(λ) * Math.cos(φ) > cr; } function clipLine(listener) { var point0, c0, v0, v00, clean; return { lineStart: function() { v00 = v0 = false; clean = 1; }, point: function(λ, φ) { var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0; if (!point0 && (v00 = v0 = v)) listener.lineStart(); if (v !== v0) { point2 = intersect(point0, point1); if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) { point1[0] += ε; point1[1] += ε; v = visible(point1[0], point1[1]); } } if (v !== v0) { clean = 0; if (v) { listener.lineStart(); point2 = intersect(point1, point0); listener.point(point2[0], point2[1]); } else { point2 = intersect(point0, point1); listener.point(point2[0], point2[1]); listener.lineEnd(); } point0 = point2; } else if (notHemisphere && point0 && smallRadius ^ v) { var t; if (!(c & c0) && (t = intersect(point1, point0, true))) { clean = 0; if (smallRadius) { listener.lineStart(); listener.point(t[0][0], t[0][1]); listener.point(t[1][0], t[1][1]); listener.lineEnd(); } else { listener.point(t[1][0], t[1][1]); listener.lineEnd(); listener.lineStart(); listener.point(t[0][0], t[0][1]); } } } if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) { listener.point(point1[0], point1[1]); } point0 = point1, v0 = v, c0 = c; }, lineEnd: function() { if (v0) listener.lineEnd(); point0 = null; }, clean: function() { return clean | (v00 && v0) << 1; } }; } function intersect(a, b, two) { var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b); var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2; if (!determinant) return !two && a; var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2); d3_geo_cartesianAdd(A, B); var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1); if (t2 < 0) return; var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu); d3_geo_cartesianAdd(q, A); q = d3_geo_spherical(q); if (!two) return q; var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z; if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z; var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε; if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z; if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) { var q1 = d3_geo_cartesianScale(u, (-w + t) / uu); d3_geo_cartesianAdd(q1, A); return [ q, d3_geo_spherical(q1) ]; } } function code(λ, φ) { var r = smallRadius ? radius : π - radius, code = 0; if (λ < -r) code |= 1; else if (λ > r) code |= 2; if (φ < -r) code |= 4; else if (φ > r) code |= 8; return code; } } function d3_geom_clipLine(x0, y0, x1, y1) { return function(line) { var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r; r = x0 - ax; if (!dx && r > 0) return; r /= dx; if (dx < 0) { if (r < t0) return; if (r < t1) t1 = r; } else if (dx > 0) { if (r > t1) return; if (r > t0) t0 = r; } r = x1 - ax; if (!dx && r < 0) return; r /= dx; if (dx < 0) { if (r > t1) return; if (r > t0) t0 = r; } else if (dx > 0) { if (r < t0) return; if (r < t1) t1 = r; } r = y0 - ay; if (!dy && r > 0) return; r /= dy; if (dy < 0) { if (r < t0) return; if (r < t1) t1 = r; } else if (dy > 0) { if (r > t1) return; if (r > t0) t0 = r; } r = y1 - ay; if (!dy && r < 0) return; r /= dy; if (dy < 0) { if (r > t1) return; if (r > t0) t0 = r; } else if (dy > 0) { if (r < t0) return; if (r < t1) t1 = r; } if (t0 > 0) line.a = { x: ax + t0 * dx, y: ay + t0 * dy }; if (t1 < 1) line.b = { x: ax + t1 * dx, y: ay + t1 * dy }; return line; }; } var d3_geo_clipExtentMAX = 1e9; d3.geo.clipExtent = function() { var x0, y0, x1, y1, stream, clip, clipExtent = { stream: function(output) { if (stream) stream.valid = false; stream = clip(output); stream.valid = true; return stream; }, extent: function(_) { if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ]; clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]); if (stream) stream.valid = false, stream = null; return clipExtent; } }; return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]); }; function d3_geo_clipExtent(x0, y0, x1, y1) { return function(listener) { var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring; var clip = { point: point, lineStart: lineStart, lineEnd: lineEnd, polygonStart: function() { listener = bufferListener; segments = []; polygon = []; clean = true; }, polygonEnd: function() { listener = listener_; segments = d3.merge(segments); var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length; if (inside || visible) { listener.polygonStart(); if (inside) { listener.lineStart(); interpolate(null, null, 1, listener); listener.lineEnd(); } if (visible) { d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener); } listener.polygonEnd(); } segments = polygon = ring = null; } }; function insidePolygon(p) { var wn = 0, n = polygon.length, y = p[1]; for (var i = 0; i < n; ++i) { for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) { b = v[j]; if (a[1] <= y) { if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn; } else { if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn; } a = b; } } return wn !== 0; } function interpolate(from, to, direction, listener) { var a = 0, a1 = 0; if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) { do { listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); } while ((a = (a + direction + 4) % 4) !== a1); } else { listener.point(to[0], to[1]); } } function pointVisible(x, y) { return x0 <= x && x <= x1 && y0 <= y && y <= y1; } function point(x, y) { if (pointVisible(x, y)) listener.point(x, y); } var x__, y__, v__, x_, y_, v_, first, clean; function lineStart() { clip.point = linePoint; if (polygon) polygon.push(ring = []); first = true; v_ = false; x_ = y_ = NaN; } function lineEnd() { if (segments) { linePoint(x__, y__); if (v__ && v_) bufferListener.rejoin(); segments.push(bufferListener.buffer()); } clip.point = point; if (v_) listener.lineEnd(); } function linePoint(x, y) { x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x)); y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y)); var v = pointVisible(x, y); if (polygon) ring.push([ x, y ]); if (first) { x__ = x, y__ = y, v__ = v; first = false; if (v) { listener.lineStart(); listener.point(x, y); } } else { if (v && v_) listener.point(x, y); else { var l = { a: { x: x_, y: y_ }, b: { x: x, y: y } }; if (clipLine(l)) { if (!v_) { listener.lineStart(); listener.point(l.a.x, l.a.y); } listener.point(l.b.x, l.b.y); if (!v) listener.lineEnd(); clean = false; } else if (v) { listener.lineStart(); listener.point(x, y); clean = false; } } } x_ = x, y_ = y, v_ = v; } return clip; }; function corner(p, direction) { return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2; } function compare(a, b) { return comparePoints(a.x, b.x); } function comparePoints(a, b) { var ca = corner(a, 1), cb = corner(b, 1); return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0]; } } function d3_geo_conic(projectAt) { var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1); p.parallels = function(_) { if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ]; return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180); }; return p; } function d3_geo_conicEqualArea(φ0, φ1) { var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n; function forward(λ, φ) { var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n; return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ]; } forward.invert = function(x, y) { var ρ0_y = ρ0 - y; return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ]; }; return forward; } (d3.geo.conicEqualArea = function() { return d3_geo_conic(d3_geo_conicEqualArea); }).raw = d3_geo_conicEqualArea; d3.geo.albers = function() { return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070); }; d3.geo.albersUsa = function() { var lower48 = d3.geo.albers(); var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]); var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]); var point, pointStream = { point: function(x, y) { point = [ x, y ]; } }, lower48Point, alaskaPoint, hawaiiPoint; function albersUsa(coordinates) { var x = coordinates[0], y = coordinates[1]; point = null; (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y); return point; } albersUsa.invert = function(coordinates) { var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k; return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates); }; albersUsa.stream = function(stream) { var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream); return { point: function(x, y) { lower48Stream.point(x, y); alaskaStream.point(x, y); hawaiiStream.point(x, y); }, sphere: function() { lower48Stream.sphere(); alaskaStream.sphere(); hawaiiStream.sphere(); }, lineStart: function() { lower48Stream.lineStart(); alaskaStream.lineStart(); hawaiiStream.lineStart(); }, lineEnd: function() { lower48Stream.lineEnd(); alaskaStream.lineEnd(); hawaiiStream.lineEnd(); }, polygonStart: function() { lower48Stream.polygonStart(); alaskaStream.polygonStart(); hawaiiStream.polygonStart(); }, polygonEnd: function() { lower48Stream.polygonEnd(); alaskaStream.polygonEnd(); hawaiiStream.polygonEnd(); } }; }; albersUsa.precision = function(_) { if (!arguments.length) return lower48.precision(); lower48.precision(_); alaska.precision(_); hawaii.precision(_); return albersUsa; }; albersUsa.scale = function(_) { if (!arguments.length) return lower48.scale(); lower48.scale(_); alaska.scale(_ * .35); hawaii.scale(_); return albersUsa.translate(lower48.translate()); }; albersUsa.translate = function(_) { if (!arguments.length) return lower48.translate(); var k = lower48.scale(), x = +_[0], y = +_[1]; lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point; alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point; hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point; return albersUsa; }; return albersUsa.scale(1070); }; var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = { point: d3_noop, lineStart: d3_noop, lineEnd: d3_noop, polygonStart: function() { d3_geo_pathAreaPolygon = 0; d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart; }, polygonEnd: function() { d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop; d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2); } }; function d3_geo_pathAreaRingStart() { var x00, y00, x0, y0; d3_geo_pathArea.point = function(x, y) { d3_geo_pathArea.point = nextPoint; x00 = x0 = x, y00 = y0 = y; }; function nextPoint(x, y) { d3_geo_pathAreaPolygon += y0 * x - x0 * y; x0 = x, y0 = y; } d3_geo_pathArea.lineEnd = function() { nextPoint(x00, y00); }; } var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1; var d3_geo_pathBounds = { point: d3_geo_pathBoundsPoint, lineStart: d3_noop, lineEnd: d3_noop, polygonStart: d3_noop, polygonEnd: d3_noop }; function d3_geo_pathBoundsPoint(x, y) { if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x; if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x; if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y; if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y; } function d3_geo_pathBuffer() { var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = []; var stream = { point: point, lineStart: function() { stream.point = pointLineStart; }, lineEnd: lineEnd, polygonStart: function() { stream.lineEnd = lineEndPolygon; }, polygonEnd: function() { stream.lineEnd = lineEnd; stream.point = point; }, pointRadius: function(_) { pointCircle = d3_geo_pathBufferCircle(_); return stream; }, result: function() { if (buffer.length) { var result = buffer.join(""); buffer = []; return result; } } }; function point(x, y) { buffer.push("M", x, ",", y, pointCircle); } function pointLineStart(x, y) { buffer.push("M", x, ",", y); stream.point = pointLine; } function pointLine(x, y) { buffer.push("L", x, ",", y); } function lineEnd() { stream.point = point; } function lineEndPolygon() { buffer.push("Z"); } return stream; } function d3_geo_pathBufferCircle(radius) { return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z"; } var d3_geo_pathCentroid = { point: d3_geo_pathCentroidPoint, lineStart: d3_geo_pathCentroidLineStart, lineEnd: d3_geo_pathCentroidLineEnd, polygonStart: function() { d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart; }, polygonEnd: function() { d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint; d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart; d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd; } }; function d3_geo_pathCentroidPoint(x, y) { d3_geo_centroidX0 += x; d3_geo_centroidY0 += y; ++d3_geo_centroidZ0; } function d3_geo_pathCentroidLineStart() { var x0, y0; d3_geo_pathCentroid.point = function(x, y) { d3_geo_pathCentroid.point = nextPoint; d3_geo_pathCentroidPoint(x0 = x, y0 = y); }; function nextPoint(x, y) { var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy); d3_geo_centroidX1 += z * (x0 + x) / 2; d3_geo_centroidY1 += z * (y0 + y) / 2; d3_geo_centroidZ1 += z; d3_geo_pathCentroidPoint(x0 = x, y0 = y); } } function d3_geo_pathCentroidLineEnd() { d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint; } function d3_geo_pathCentroidRingStart() { var x00, y00, x0, y0; d3_geo_pathCentroid.point = function(x, y) { d3_geo_pathCentroid.point = nextPoint; d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y); }; function nextPoint(x, y) { var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy); d3_geo_centroidX1 += z * (x0 + x) / 2; d3_geo_centroidY1 += z * (y0 + y) / 2; d3_geo_centroidZ1 += z; z = y0 * x - x0 * y; d3_geo_centroidX2 += z * (x0 + x); d3_geo_centroidY2 += z * (y0 + y); d3_geo_centroidZ2 += z * 3; d3_geo_pathCentroidPoint(x0 = x, y0 = y); } d3_geo_pathCentroid.lineEnd = function() { nextPoint(x00, y00); }; } function d3_geo_pathContext(context) { var pointRadius = 4.5; var stream = { point: point, lineStart: function() { stream.point = pointLineStart; }, lineEnd: lineEnd, polygonStart: function() { stream.lineEnd = lineEndPolygon; }, polygonEnd: function() { stream.lineEnd = lineEnd; stream.point = point; }, pointRadius: function(_) { pointRadius = _; return stream; }, result: d3_noop }; function point(x, y) { context.moveTo(x + pointRadius, y); context.arc(x, y, pointRadius, 0, τ); } function pointLineStart(x, y) { context.moveTo(x, y); stream.point = pointLine; } function pointLine(x, y) { context.lineTo(x, y); } function lineEnd() { stream.point = point; } function lineEndPolygon() { context.closePath(); } return stream; } function d3_geo_resample(project) { var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16; function resample(stream) { return (maxDepth ? resampleRecursive : resampleNone)(stream); } function resampleNone(stream) { return d3_geo_transformPoint(stream, function(x, y) { x = project(x, y); stream.point(x[0], x[1]); }); } function resampleRecursive(stream) { var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0; var resample = { point: point, lineStart: lineStart, lineEnd: lineEnd, polygonStart: function() { stream.polygonStart(); resample.lineStart = ringStart; }, polygonEnd: function() { stream.polygonEnd(); resample.lineStart = lineStart; } }; function point(x, y) { x = project(x, y); stream.point(x[0], x[1]); } function lineStart() { x0 = NaN; resample.point = linePoint; stream.lineStart(); } function linePoint(λ, φ) { var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ); resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream); stream.point(x0, y0); } function lineEnd() { resample.point = point; stream.lineEnd(); } function ringStart() { lineStart(); resample.point = ringPoint; resample.lineEnd = ringEnd; } function ringPoint(λ, φ) { linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0; resample.point = linePoint; } function ringEnd() { resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream); resample.lineEnd = lineEnd; lineEnd(); } return resample; } function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) { var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy; if (d2 > 4 * δ2 && depth--) { var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2; if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream); stream.point(x2, y2); resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream); } } } resample.precision = function(_) { if (!arguments.length) return Math.sqrt(δ2); maxDepth = (δ2 = _ * _) > 0 && 16; return resample; }; return resample; } d3.geo.path = function() { var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream; function path(object) { if (object) { if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments)); if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream); d3.geo.stream(object, cacheStream); } return contextStream.result(); } path.area = function(object) { d3_geo_pathAreaSum = 0; d3.geo.stream(object, projectStream(d3_geo_pathArea)); return d3_geo_pathAreaSum; }; path.centroid = function(object) { d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0; d3.geo.stream(object, projectStream(d3_geo_pathCentroid)); return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ]; }; path.bounds = function(object) { d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity); d3.geo.stream(object, projectStream(d3_geo_pathBounds)); return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ]; }; path.projection = function(_) { if (!arguments.length) return projection; projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity; return reset(); }; path.context = function(_) { if (!arguments.length) return context; contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_); if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius); return reset(); }; path.pointRadius = function(_) { if (!arguments.length) return pointRadius; pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_); return path; }; function reset() { cacheStream = null; return path; } return path.projection(d3.geo.albersUsa()).context(null); }; function d3_geo_pathProjectStream(project) { var resample = d3_geo_resample(function(x, y) { return project([ x * d3_degrees, y * d3_degrees ]); }); return function(stream) { return d3_geo_projectionRadians(resample(stream)); }; } d3.geo.transform = function(methods) { return { stream: function(stream) { var transform = new d3_geo_transform(stream); for (var k in methods) transform[k] = methods[k]; return transform; } }; }; function d3_geo_transform(stream) { this.stream = stream; } d3_geo_transform.prototype = { point: function(x, y) { this.stream.point(x, y); }, sphere: function() { this.stream.sphere(); }, lineStart: function() { this.stream.lineStart(); }, lineEnd: function() { this.stream.lineEnd(); }, polygonStart: function() { this.stream.polygonStart(); }, polygonEnd: function() { this.stream.polygonEnd(); } }; function d3_geo_transformPoint(stream, point) { return { point: point, sphere: function() { stream.sphere(); }, lineStart: function() { stream.lineStart(); }, lineEnd: function() { stream.lineEnd(); }, polygonStart: function() { stream.polygonStart(); }, polygonEnd: function() { stream.polygonEnd(); } }; } d3.geo.projection = d3_geo_projection; d3.geo.projectionMutator = d3_geo_projectionMutator; function d3_geo_projection(project) { return d3_geo_projectionMutator(function() { return project; })(); } function d3_geo_projectionMutator(projectAt) { var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) { x = project(x, y); return [ x[0] * k + δx, δy - x[1] * k ]; }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream; function projection(point) { point = projectRotate(point[0] * d3_radians, point[1] * d3_radians); return [ point[0] * k + δx, δy - point[1] * k ]; } function invert(point) { point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k); return point && [ point[0] * d3_degrees, point[1] * d3_degrees ]; } projection.stream = function(output) { if (stream) stream.valid = false; stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output)))); stream.valid = true; return stream; }; projection.clipAngle = function(_) { if (!arguments.length) return clipAngle; preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians); return invalidate(); }; projection.clipExtent = function(_) { if (!arguments.length) return clipExtent; clipExtent = _; postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity; return invalidate(); }; projection.scale = function(_) { if (!arguments.length) return k; k = +_; return reset(); }; projection.translate = function(_) { if (!arguments.length) return [ x, y ]; x = +_[0]; y = +_[1]; return reset(); }; projection.center = function(_) { if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ]; λ = _[0] % 360 * d3_radians; φ = _[1] % 360 * d3_radians; return reset(); }; projection.rotate = function(_) { if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ]; δλ = _[0] % 360 * d3_radians; δφ = _[1] % 360 * d3_radians; δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0; return reset(); }; d3.rebind(projection, projectResample, "precision"); function reset() { projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project); var center = project(λ, φ); δx = x - center[0] * k; δy = y + center[1] * k; return invalidate(); } function invalidate() { if (stream) stream.valid = false, stream = null; return projection; } return function() { project = projectAt.apply(this, arguments); projection.invert = project.invert && invert; return reset(); }; } function d3_geo_projectionRadians(stream) { return d3_geo_transformPoint(stream, function(x, y) { stream.point(x * d3_radians, y * d3_radians); }); } function d3_geo_equirectangular(λ, φ) { return [ λ, φ ]; } (d3.geo.equirectangular = function() { return d3_geo_projection(d3_geo_equirectangular); }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular; d3.geo.rotation = function(rotate) { rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0); function forward(coordinates) { coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians); return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates; } forward.invert = function(coordinates) { coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians); return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates; }; return forward; }; function d3_geo_identityRotation(λ, φ) { return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ]; } d3_geo_identityRotation.invert = d3_geo_equirectangular; function d3_geo_rotation(δλ, δφ, δγ) { return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation; } function d3_geo_forwardRotationλ(δλ) { return function(λ, φ) { return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ]; }; } function d3_geo_rotationλ(δλ) { var rotation = d3_geo_forwardRotationλ(δλ); rotation.invert = d3_geo_forwardRotationλ(-δλ); return rotation; } function d3_geo_rotationφγ(δφ, δγ) { var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ); function rotation(λ, φ) { var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ; return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ]; } rotation.invert = function(λ, φ) { var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ; return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ]; }; return rotation; } d3.geo.circle = function() { var origin = [ 0, 0 ], angle, precision = 6, interpolate; function circle() { var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = []; interpolate(null, null, 1, { point: function(x, y) { ring.push(x = rotate(x, y)); x[0] *= d3_degrees, x[1] *= d3_degrees; } }); return { type: "Polygon", coordinates: [ ring ] }; } circle.origin = function(x) { if (!arguments.length) return origin; origin = x; return circle; }; circle.angle = function(x) { if (!arguments.length) return angle; interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians); return circle; }; circle.precision = function(_) { if (!arguments.length) return precision; interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians); return circle; }; return circle.angle(90); }; function d3_geo_circleInterpolate(radius, precision) { var cr = Math.cos(radius), sr = Math.sin(radius); return function(from, to, direction, listener) { var step = direction * precision; if (from != null) { from = d3_geo_circleAngle(cr, from); to = d3_geo_circleAngle(cr, to); if (direction > 0 ? from < to : from > to) from += direction * τ; } else { from = radius + direction * τ; to = radius - .5 * step; } for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) { listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]); } }; } function d3_geo_circleAngle(cr, point) { var a = d3_geo_cartesian(point); a[0] -= cr; d3_geo_cartesianNormalize(a); var angle = d3_acos(-a[1]); return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI); } d3.geo.distance = function(a, b) { var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t; return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ); }; d3.geo.graticule = function() { var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5; function graticule() { return { type: "MultiLineString", coordinates: lines() }; } function lines() { return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > ε; }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > ε; }).map(y)); } graticule.lines = function() { return lines().map(function(coordinates) { return { type: "LineString", coordinates: coordinates }; }); }; graticule.outline = function() { return { type: "Polygon", coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ] }; }; graticule.extent = function(_) { if (!arguments.length) return graticule.minorExtent(); return graticule.majorExtent(_).minorExtent(_); }; graticule.majorExtent = function(_) { if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ]; X0 = +_[0][0], X1 = +_[1][0]; Y0 = +_[0][1], Y1 = +_[1][1]; if (X0 > X1) _ = X0, X0 = X1, X1 = _; if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _; return graticule.precision(precision); }; graticule.minorExtent = function(_) { if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ]; x0 = +_[0][0], x1 = +_[1][0]; y0 = +_[0][1], y1 = +_[1][1]; if (x0 > x1) _ = x0, x0 = x1, x1 = _; if (y0 > y1) _ = y0, y0 = y1, y1 = _; return graticule.precision(precision); }; graticule.step = function(_) { if (!arguments.length) return graticule.minorStep(); return graticule.majorStep(_).minorStep(_); }; graticule.majorStep = function(_) { if (!arguments.length) return [ DX, DY ]; DX = +_[0], DY = +_[1]; return graticule; }; graticule.minorStep = function(_) { if (!arguments.length) return [ dx, dy ]; dx = +_[0], dy = +_[1]; return graticule; }; graticule.precision = function(_) { if (!arguments.length) return precision; precision = +_; x = d3_geo_graticuleX(y0, y1, 90); y = d3_geo_graticuleY(x0, x1, precision); X = d3_geo_graticuleX(Y0, Y1, 90); Y = d3_geo_graticuleY(X0, X1, precision); return graticule; }; return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]); }; function d3_geo_graticuleX(y0, y1, dy) { var y = d3.range(y0, y1 - ε, dy).concat(y1); return function(x) { return y.map(function(y) { return [ x, y ]; }); }; } function d3_geo_graticuleY(x0, x1, dx) { var x = d3.range(x0, x1 - ε, dx).concat(x1); return function(y) { return x.map(function(x) { return [ x, y ]; }); }; } function d3_source(d) { return d.source; } function d3_target(d) { return d.target; } d3.geo.greatArc = function() { var source = d3_source, source_, target = d3_target, target_; function greatArc() { return { type: "LineString", coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ] }; } greatArc.distance = function() { return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments)); }; greatArc.source = function(_) { if (!arguments.length) return source; source = _, source_ = typeof _ === "function" ? null : _; return greatArc; }; greatArc.target = function(_) { if (!arguments.length) return target; target = _, target_ = typeof _ === "function" ? null : _; return greatArc; }; greatArc.precision = function() { return arguments.length ? greatArc : 0; }; return greatArc; }; d3.geo.interpolate = function(source, target) { return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians); }; function d3_geo_interpolate(x0, y0, x1, y1) { var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d); var interpolate = d ? function(t) { var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1; return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ]; } : function() { return [ x0 * d3_degrees, y0 * d3_degrees ]; }; interpolate.distance = d; return interpolate; } d3.geo.length = function(object) { d3_geo_lengthSum = 0; d3.geo.stream(object, d3_geo_length); return d3_geo_lengthSum; }; var d3_geo_lengthSum; var d3_geo_length = { sphere: d3_noop, point: d3_noop, lineStart: d3_geo_lengthLineStart, lineEnd: d3_noop, polygonStart: d3_noop, polygonEnd: d3_noop }; function d3_geo_lengthLineStart() { var λ0, sinφ0, cosφ0; d3_geo_length.point = function(λ, φ) { λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ); d3_geo_length.point = nextPoint; }; d3_geo_length.lineEnd = function() { d3_geo_length.point = d3_geo_length.lineEnd = d3_noop; }; function nextPoint(λ, φ) { var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t); d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ); λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ; } } function d3_geo_azimuthal(scale, angle) { function azimuthal(λ, φ) { var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ); return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ]; } azimuthal.invert = function(x, y) { var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c); return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ]; }; return azimuthal; } var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) { return Math.sqrt(2 / (1 + cosλcosφ)); }, function(ρ) { return 2 * Math.asin(ρ / 2); }); (d3.geo.azimuthalEqualArea = function() { return d3_geo_projection(d3_geo_azimuthalEqualArea); }).raw = d3_geo_azimuthalEqualArea; var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) { var c = Math.acos(cosλcosφ); return c && c / Math.sin(c); }, d3_identity); (d3.geo.azimuthalEquidistant = function() { return d3_geo_projection(d3_geo_azimuthalEquidistant); }).raw = d3_geo_azimuthalEquidistant; function d3_geo_conicConformal(φ0, φ1) { var cosφ0 = Math.cos(φ0), t = function(φ) { return Math.tan(π / 4 + φ / 2); }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n; if (!n) return d3_geo_mercator; function forward(λ, φ) { if (F > 0) { if (φ < -halfπ + ε) φ = -halfπ + ε; } else { if (φ > halfπ - ε) φ = halfπ - ε; } var ρ = F / Math.pow(t(φ), n); return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ]; } forward.invert = function(x, y) { var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y); return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ]; }; return forward; } (d3.geo.conicConformal = function() { return d3_geo_conic(d3_geo_conicConformal); }).raw = d3_geo_conicConformal; function d3_geo_conicEquidistant(φ0, φ1) { var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0; if (abs(n) < ε) return d3_geo_equirectangular; function forward(λ, φ) { var ρ = G - φ; return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ]; } forward.invert = function(x, y) { var ρ0_y = G - y; return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ]; }; return forward; } (d3.geo.conicEquidistant = function() { return d3_geo_conic(d3_geo_conicEquidistant); }).raw = d3_geo_conicEquidistant; var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) { return 1 / cosλcosφ; }, Math.atan); (d3.geo.gnomonic = function() { return d3_geo_projection(d3_geo_gnomonic); }).raw = d3_geo_gnomonic; function d3_geo_mercator(λ, φ) { return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ]; } d3_geo_mercator.invert = function(x, y) { return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ]; }; function d3_geo_mercatorProjection(project) { var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto; m.scale = function() { var v = scale.apply(m, arguments); return v === m ? clipAuto ? m.clipExtent(null) : m : v; }; m.translate = function() { var v = translate.apply(m, arguments); return v === m ? clipAuto ? m.clipExtent(null) : m : v; }; m.clipExtent = function(_) { var v = clipExtent.apply(m, arguments); if (v === m) { if (clipAuto = _ == null) { var k = π * scale(), t = translate(); clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]); } } else if (clipAuto) { v = null; } return v; }; return m.clipExtent(null); } (d3.geo.mercator = function() { return d3_geo_mercatorProjection(d3_geo_mercator); }).raw = d3_geo_mercator; var d3_geo_orthographic = d3_geo_azimuthal(function() { return 1; }, Math.asin); (d3.geo.orthographic = function() { return d3_geo_projection(d3_geo_orthographic); }).raw = d3_geo_orthographic; var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) { return 1 / (1 + cosλcosφ); }, function(ρ) { return 2 * Math.atan(ρ); }); (d3.geo.stereographic = function() { return d3_geo_projection(d3_geo_stereographic); }).raw = d3_geo_stereographic; function d3_geo_transverseMercator(λ, φ) { return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ]; } d3_geo_transverseMercator.invert = function(x, y) { return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ]; }; (d3.geo.transverseMercator = function() { var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate; projection.center = function(_) { return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]); }; projection.rotate = function(_) { return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), [ _[0], _[1], _[2] - 90 ]); }; return rotate([ 0, 0, 90 ]); }).raw = d3_geo_transverseMercator; d3.geom = {}; function d3_geom_pointX(d) { return d[0]; } function d3_geom_pointY(d) { return d[1]; } d3.geom.hull = function(vertices) { var x = d3_geom_pointX, y = d3_geom_pointY; if (arguments.length) return hull(vertices); function hull(data) { if (data.length < 3) return []; var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = []; for (i = 0; i < n; i++) { points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]); } points.sort(d3_geom_hullOrder); for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]); var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints); var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = []; for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]); for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]); return polygon; } hull.x = function(_) { return arguments.length ? (x = _, hull) : x; }; hull.y = function(_) { return arguments.length ? (y = _, hull) : y; }; return hull; }; function d3_geom_hullUpper(points) { var n = points.length, hull = [ 0, 1 ], hs = 2; for (var i = 2; i < n; i++) { while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs; hull[hs++] = i; } return hull.slice(0, hs); } function d3_geom_hullOrder(a, b) { return a[0] - b[0] || a[1] - b[1]; } d3.geom.polygon = function(coordinates) { d3_subclass(coordinates, d3_geom_polygonPrototype); return coordinates; }; var d3_geom_polygonPrototype = d3.geom.polygon.prototype = []; d3_geom_polygonPrototype.area = function() { var i = -1, n = this.length, a, b = this[n - 1], area = 0; while (++i < n) { a = b; b = this[i]; area += a[1] * b[0] - a[0] * b[1]; } return area * .5; }; d3_geom_polygonPrototype.centroid = function(k) { var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c; if (!arguments.length) k = -1 / (6 * this.area()); while (++i < n) { a = b; b = this[i]; c = a[0] * b[1] - b[0] * a[1]; x += (a[0] + b[0]) * c; y += (a[1] + b[1]) * c; } return [ x * k, y * k ]; }; d3_geom_polygonPrototype.clip = function(subject) { var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d; while (++i < n) { input = subject.slice(); subject.length = 0; b = this[i]; c = input[(m = input.length - closed) - 1]; j = -1; while (++j < m) { d = input[j]; if (d3_geom_polygonInside(d, a, b)) { if (!d3_geom_polygonInside(c, a, b)) { subject.push(d3_geom_polygonIntersect(c, d, a, b)); } subject.push(d); } else if (d3_geom_polygonInside(c, a, b)) { subject.push(d3_geom_polygonIntersect(c, d, a, b)); } c = d; } if (closed) subject.push(subject[0]); a = b; } return subject; }; function d3_geom_polygonInside(p, a, b) { return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]); } function d3_geom_polygonIntersect(c, d, a, b) { var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21); return [ x1 + ua * x21, y1 + ua * y21 ]; } function d3_geom_polygonClosed(coordinates) { var a = coordinates[0], b = coordinates[coordinates.length - 1]; return !(a[0] - b[0] || a[1] - b[1]); } var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = []; function d3_geom_voronoiBeach() { d3_geom_voronoiRedBlackNode(this); this.edge = this.site = this.circle = null; } function d3_geom_voronoiCreateBeach(site) { var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach(); beach.site = site; return beach; } function d3_geom_voronoiDetachBeach(beach) { d3_geom_voronoiDetachCircle(beach); d3_geom_voronoiBeaches.remove(beach); d3_geom_voronoiBeachPool.push(beach); d3_geom_voronoiRedBlackNode(beach); } function d3_geom_voronoiRemoveBeach(beach) { var circle = beach.circle, x = circle.x, y = circle.cy, vertex = { x: x, y: y }, previous = beach.P, next = beach.N, disappearing = [ beach ]; d3_geom_voronoiDetachBeach(beach); var lArc = previous; while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) { previous = lArc.P; disappearing.unshift(lArc); d3_geom_voronoiDetachBeach(lArc); lArc = previous; } disappearing.unshift(lArc); d3_geom_voronoiDetachCircle(lArc); var rArc = next; while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) { next = rArc.N; disappearing.push(rArc); d3_geom_voronoiDetachBeach(rArc); rArc = next; } disappearing.push(rArc); d3_geom_voronoiDetachCircle(rArc); var nArcs = disappearing.length, iArc; for (iArc = 1; iArc < nArcs; ++iArc) { rArc = disappearing[iArc]; lArc = disappearing[iArc - 1]; d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex); } lArc = disappearing[0]; rArc = disappearing[nArcs - 1]; rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex); d3_geom_voronoiAttachCircle(lArc); d3_geom_voronoiAttachCircle(rArc); } function d3_geom_voronoiAddBeach(site) { var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._; while (node) { dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x; if (dxl > ε) node = node.L; else { dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix); if (dxr > ε) { if (!node.R) { lArc = node; break; } node = node.R; } else { if (dxl > -ε) { lArc = node.P; rArc = node; } else if (dxr > -ε) { lArc = node; rArc = node.N; } else { lArc = rArc = node; } break; } } } var newArc = d3_geom_voronoiCreateBeach(site); d3_geom_voronoiBeaches.insert(lArc, newArc); if (!lArc && !rArc) return; if (lArc === rArc) { d3_geom_voronoiDetachCircle(lArc); rArc = d3_geom_voronoiCreateBeach(lArc.site); d3_geom_voronoiBeaches.insert(newArc, rArc); newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site); d3_geom_voronoiAttachCircle(lArc); d3_geom_voronoiAttachCircle(rArc); return; } if (!rArc) { newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site); return; } d3_geom_voronoiDetachCircle(lArc); d3_geom_voronoiDetachCircle(rArc); var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = { x: (cy * hb - by * hc) / d + ax, y: (bx * hc - cx * hb) / d + ay }; d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex); newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex); rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex); d3_geom_voronoiAttachCircle(lArc); d3_geom_voronoiAttachCircle(rArc); } function d3_geom_voronoiLeftBreakPoint(arc, directrix) { var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix; if (!pby2) return rfocx; var lArc = arc.P; if (!lArc) return -Infinity; site = lArc.site; var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix; if (!plby2) return lfocx; var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2; if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx; return (rfocx + lfocx) / 2; } function d3_geom_voronoiRightBreakPoint(arc, directrix) { var rArc = arc.N; if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix); var site = arc.site; return site.y === directrix ? site.x : Infinity; } function d3_geom_voronoiCell(site) { this.site = site; this.edges = []; } d3_geom_voronoiCell.prototype.prepare = function() { var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge; while (iHalfEdge--) { edge = halfEdges[iHalfEdge].edge; if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1); } halfEdges.sort(d3_geom_voronoiHalfEdgeOrder); return halfEdges.length; }; function d3_geom_voronoiCloseCells(extent) { var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end; while (iCell--) { cell = cells[iCell]; if (!cell || !cell.prepare()) continue; halfEdges = cell.edges; nHalfEdges = halfEdges.length; iHalfEdge = 0; while (iHalfEdge < nHalfEdges) { end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y; start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y; if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) { halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? { x: x0, y: abs(x2 - x0) < ε ? y2 : y1 } : abs(y3 - y1) < ε && x1 - x3 > ε ? { x: abs(y2 - y1) < ε ? x2 : x1, y: y1 } : abs(x3 - x1) < ε && y3 - y0 > ε ? { x: x1, y: abs(x2 - x1) < ε ? y2 : y0 } : abs(y3 - y0) < ε && x3 - x0 > ε ? { x: abs(y2 - y0) < ε ? x2 : x0, y: y0 } : null), cell.site, null)); ++nHalfEdges; } } } } function d3_geom_voronoiHalfEdgeOrder(a, b) { return b.angle - a.angle; } function d3_geom_voronoiCircle() { d3_geom_voronoiRedBlackNode(this); this.x = this.y = this.arc = this.site = this.cy = null; } function d3_geom_voronoiAttachCircle(arc) { var lArc = arc.P, rArc = arc.N; if (!lArc || !rArc) return; var lSite = lArc.site, cSite = arc.site, rSite = rArc.site; if (lSite === rSite) return; var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by; var d = 2 * (ax * cy - ay * cx); if (d >= -ε2) return; var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by; var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle(); circle.arc = arc; circle.site = cSite; circle.x = x + bx; circle.y = cy + Math.sqrt(x * x + y * y); circle.cy = cy; arc.circle = circle; var before = null, node = d3_geom_voronoiCircles._; while (node) { if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) { if (node.L) node = node.L; else { before = node.P; break; } } else { if (node.R) node = node.R; else { before = node; break; } } } d3_geom_voronoiCircles.insert(before, circle); if (!before) d3_geom_voronoiFirstCircle = circle; } function d3_geom_voronoiDetachCircle(arc) { var circle = arc.circle; if (circle) { if (!circle.P) d3_geom_voronoiFirstCircle = circle.N; d3_geom_voronoiCircles.remove(circle); d3_geom_voronoiCirclePool.push(circle); d3_geom_voronoiRedBlackNode(circle); arc.circle = null; } } function d3_geom_voronoiClipEdges(extent) { var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e; while (i--) { e = edges[i]; if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) { e.a = e.b = null; edges.splice(i, 1); } } } function d3_geom_voronoiConnectEdge(edge, extent) { var vb = edge.b; if (vb) return true; var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb; if (ry === ly) { if (fx < x0 || fx >= x1) return; if (lx > rx) { if (!va) va = { x: fx, y: y0 }; else if (va.y >= y1) return; vb = { x: fx, y: y1 }; } else { if (!va) va = { x: fx, y: y1 }; else if (va.y < y0) return; vb = { x: fx, y: y0 }; } } else { fm = (lx - rx) / (ry - ly); fb = fy - fm * fx; if (fm < -1 || fm > 1) { if (lx > rx) { if (!va) va = { x: (y0 - fb) / fm, y: y0 }; else if (va.y >= y1) return; vb = { x: (y1 - fb) / fm, y: y1 }; } else { if (!va) va = { x: (y1 - fb) / fm, y: y1 }; else if (va.y < y0) return; vb = { x: (y0 - fb) / fm, y: y0 }; } } else { if (ly < ry) { if (!va) va = { x: x0, y: fm * x0 + fb }; else if (va.x >= x1) return; vb = { x: x1, y: fm * x1 + fb }; } else { if (!va) va = { x: x1, y: fm * x1 + fb }; else if (va.x < x0) return; vb = { x: x0, y: fm * x0 + fb }; } } } edge.a = va; edge.b = vb; return true; } function d3_geom_voronoiEdge(lSite, rSite) { this.l = lSite; this.r = rSite; this.a = this.b = null; } function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) { var edge = new d3_geom_voronoiEdge(lSite, rSite); d3_geom_voronoiEdges.push(edge); if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va); if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb); d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite)); d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite)); return edge; } function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) { var edge = new d3_geom_voronoiEdge(lSite, null); edge.a = va; edge.b = vb; d3_geom_voronoiEdges.push(edge); return edge; } function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) { if (!edge.a && !edge.b) { edge.a = vertex; edge.l = lSite; edge.r = rSite; } else if (edge.l === rSite) { edge.b = vertex; } else { edge.a = vertex; } } function d3_geom_voronoiHalfEdge(edge, lSite, rSite) { var va = edge.a, vb = edge.b; this.edge = edge; this.site = lSite; this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y); } d3_geom_voronoiHalfEdge.prototype = { start: function() { return this.edge.l === this.site ? this.edge.a : this.edge.b; }, end: function() { return this.edge.l === this.site ? this.edge.b : this.edge.a; } }; function d3_geom_voronoiRedBlackTree() { this._ = null; } function d3_geom_voronoiRedBlackNode(node) { node.U = node.C = node.L = node.R = node.P = node.N = null; } d3_geom_voronoiRedBlackTree.prototype = { insert: function(after, node) { var parent, grandpa, uncle; if (after) { node.P = after; node.N = after.N; if (after.N) after.N.P = node; after.N = node; if (after.R) { after = after.R; while (after.L) after = after.L; after.L = node; } else { after.R = node; } parent = after; } else if (this._) { after = d3_geom_voronoiRedBlackFirst(this._); node.P = null; node.N = after; after.P = after.L = node; parent = after; } else { node.P = node.N = null; this._ = node; parent = null; } node.L = node.R = null; node.U = parent; node.C = true; after = node; while (parent && parent.C) { grandpa = parent.U; if (parent === grandpa.L) { uncle = grandpa.R; if (uncle && uncle.C) { parent.C = uncle.C = false; grandpa.C = true; after = grandpa; } else { if (after === parent.R) { d3_geom_voronoiRedBlackRotateLeft(this, parent); after = parent; parent = after.U; } parent.C = false; grandpa.C = true; d3_geom_voronoiRedBlackRotateRight(this, grandpa); } } else { uncle = grandpa.L; if (uncle && uncle.C) { parent.C = uncle.C = false; grandpa.C = true; after = grandpa; } else { if (after === parent.L) { d3_geom_voronoiRedBlackRotateRight(this, parent); after = parent; parent = after.U; } parent.C = false; grandpa.C = true; d3_geom_voronoiRedBlackRotateLeft(this, grandpa); } } parent = after.U; } this._.C = false; }, remove: function(node) { if (node.N) node.N.P = node.P; if (node.P) node.P.N = node.N; node.N = node.P = null; var parent = node.U, sibling, left = node.L, right = node.R, next, red; if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right); if (parent) { if (parent.L === node) parent.L = next; else parent.R = next; } else { this._ = next; } if (left && right) { red = next.C; next.C = node.C; next.L = left; left.U = next; if (next !== right) { parent = next.U; next.U = node.U; node = next.R; parent.L = node; next.R = right; right.U = next; } else { next.U = parent; parent = next; node = next.R; } } else { red = node.C; node = next; } if (node) node.U = parent; if (red) return; if (node && node.C) { node.C = false; return; } do { if (node === this._) break; if (node === parent.L) { sibling = parent.R; if (sibling.C) { sibling.C = false; parent.C = true; d3_geom_voronoiRedBlackRotateLeft(this, parent); sibling = parent.R; } if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) { if (!sibling.R || !sibling.R.C) { sibling.L.C = false; sibling.C = true; d3_geom_voronoiRedBlackRotateRight(this, sibling); sibling = parent.R; } sibling.C = parent.C; parent.C = sibling.R.C = false; d3_geom_voronoiRedBlackRotateLeft(this, parent); node = this._; break; } } else { sibling = parent.L; if (sibling.C) { sibling.C = false; parent.C = true; d3_geom_voronoiRedBlackRotateRight(this, parent); sibling = parent.L; } if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) { if (!sibling.L || !sibling.L.C) { sibling.R.C = false; sibling.C = true; d3_geom_voronoiRedBlackRotateLeft(this, sibling); sibling = parent.L; } sibling.C = parent.C; parent.C = sibling.L.C = false; d3_geom_voronoiRedBlackRotateRight(this, parent); node = this._; break; } } sibling.C = true; node = parent; parent = parent.U; } while (!node.C); if (node) node.C = false; } }; function d3_geom_voronoiRedBlackRotateLeft(tree, node) { var p = node, q = node.R, parent = p.U; if (parent) { if (parent.L === p) parent.L = q; else parent.R = q; } else { tree._ = q; } q.U = parent; p.U = q; p.R = q.L; if (p.R) p.R.U = p; q.L = p; } function d3_geom_voronoiRedBlackRotateRight(tree, node) { var p = node, q = node.L, parent = p.U; if (parent) { if (parent.L === p) parent.L = q; else parent.R = q; } else { tree._ = q; } q.U = parent; p.U = q; p.L = q.R; if (p.L) p.L.U = p; q.R = p; } function d3_geom_voronoiRedBlackFirst(node) { while (node.L) node = node.L; return node; } function d3_geom_voronoi(sites, bbox) { var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle; d3_geom_voronoiEdges = []; d3_geom_voronoiCells = new Array(sites.length); d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree(); d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree(); while (true) { circle = d3_geom_voronoiFirstCircle; if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) { if (site.x !== x0 || site.y !== y0) { d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site); d3_geom_voronoiAddBeach(site); x0 = site.x, y0 = site.y; } site = sites.pop(); } else if (circle) { d3_geom_voronoiRemoveBeach(circle.arc); } else { break; } } if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox); var diagram = { cells: d3_geom_voronoiCells, edges: d3_geom_voronoiEdges }; d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null; return diagram; } function d3_geom_voronoiVertexOrder(a, b) { return b.y - a.y || b.x - a.x; } d3.geom.voronoi = function(points) { var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent; if (points) return voronoi(points); function voronoi(data) { var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1]; d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) { var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) { var s = e.start(); return [ s.x, s.y ]; }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : []; polygon.point = data[i]; }); return polygons; } function sites(data) { return data.map(function(d, i) { return { x: Math.round(fx(d, i) / ε) * ε, y: Math.round(fy(d, i) / ε) * ε, i: i }; }); } voronoi.links = function(data) { return d3_geom_voronoi(sites(data)).edges.filter(function(edge) { return edge.l && edge.r; }).map(function(edge) { return { source: data[edge.l.i], target: data[edge.r.i] }; }); }; voronoi.triangles = function(data) { var triangles = []; d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) { var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l; while (++j < m) { e0 = e1; s0 = s1; e1 = edges[j].edge; s1 = e1.l === site ? e1.r : e1.l; if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) { triangles.push([ data[i], data[s0.i], data[s1.i] ]); } } }); return triangles; }; voronoi.x = function(_) { return arguments.length ? (fx = d3_functor(x = _), voronoi) : x; }; voronoi.y = function(_) { return arguments.length ? (fy = d3_functor(y = _), voronoi) : y; }; voronoi.clipExtent = function(_) { if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent; clipExtent = _ == null ? d3_geom_voronoiClipExtent : _; return voronoi; }; voronoi.size = function(_) { if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1]; return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]); }; return voronoi; }; var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ]; function d3_geom_voronoiTriangleArea(a, b, c) { return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y); } d3.geom.delaunay = function(vertices) { return d3.geom.voronoi().triangles(vertices); }; d3.geom.quadtree = function(points, x1, y1, x2, y2) { var x = d3_geom_pointX, y = d3_geom_pointY, compat; if (compat = arguments.length) { x = d3_geom_quadtreeCompatX; y = d3_geom_quadtreeCompatY; if (compat === 3) { y2 = y1; x2 = x1; y1 = x1 = 0; } return quadtree(points); } function quadtree(data) { var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_; if (x1 != null) { x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2; } else { x2_ = y2_ = -(x1_ = y1_ = Infinity); xs = [], ys = []; n = data.length; if (compat) for (i = 0; i < n; ++i) { d = data[i]; if (d.x < x1_) x1_ = d.x; if (d.y < y1_) y1_ = d.y; if (d.x > x2_) x2_ = d.x; if (d.y > y2_) y2_ = d.y; xs.push(d.x); ys.push(d.y); } else for (i = 0; i < n; ++i) { var x_ = +fx(d = data[i], i), y_ = +fy(d, i); if (x_ < x1_) x1_ = x_; if (y_ < y1_) y1_ = y_; if (x_ > x2_) x2_ = x_; if (y_ > y2_) y2_ = y_; xs.push(x_); ys.push(y_); } } var dx = x2_ - x1_, dy = y2_ - y1_; if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy; function insert(n, d, x, y, x1, y1, x2, y2) { if (isNaN(x) || isNaN(y)) return; if (n.leaf) { var nx = n.x, ny = n.y; if (nx != null) { if (abs(nx - x) + abs(ny - y) < .01) { insertChild(n, d, x, y, x1, y1, x2, y2); } else { var nPoint = n.point; n.x = n.y = n.point = null; insertChild(n, nPoint, nx, ny, x1, y1, x2, y2); insertChild(n, d, x, y, x1, y1, x2, y2); } } else { n.x = x, n.y = y, n.point = d; } } else { insertChild(n, d, x, y, x1, y1, x2, y2); } } function insertChild(n, d, x, y, x1, y1, x2, y2) { var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right; n.leaf = false; n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode()); if (right) x1 = xm; else x2 = xm; if (below) y1 = ym; else y2 = ym; insert(n, d, x, y, x1, y1, x2, y2); } var root = d3_geom_quadtreeNode(); root.add = function(d) { insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_); }; root.visit = function(f) { d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_); }; root.find = function(point) { return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_); }; i = -1; if (x1 == null) { while (++i < n) { insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_); } --i; } else data.forEach(root.add); xs = ys = data = d = null; return root; } quadtree.x = function(_) { return arguments.length ? (x = _, quadtree) : x; }; quadtree.y = function(_) { return arguments.length ? (y = _, quadtree) : y; }; quadtree.extent = function(_) { if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ]; if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], y2 = +_[1][1]; return quadtree; }; quadtree.size = function(_) { if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ]; if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1]; return quadtree; }; return quadtree; }; function d3_geom_quadtreeCompatX(d) { return d.x; } function d3_geom_quadtreeCompatY(d) { return d.y; } function d3_geom_quadtreeNode() { return { leaf: true, nodes: [], point: null, x: null, y: null }; } function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) { if (!f(node, x1, y1, x2, y2)) { var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes; if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy); if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy); if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2); if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2); } } function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) { var minDistance2 = Infinity, closestPoint; (function find(node, x1, y1, x2, y2) { if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return; if (point = node.point) { var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy; if (distance2 < minDistance2) { var distance = Math.sqrt(minDistance2 = distance2); x0 = x - distance, y0 = y - distance; x3 = x + distance, y3 = y + distance; closestPoint = point; } } var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym; for (var i = below << 1 | right, j = i + 4; i < j; ++i) { if (node = children[i & 3]) switch (i & 3) { case 0: find(node, x1, y1, xm, ym); break; case 1: find(node, xm, y1, x2, ym); break; case 2: find(node, x1, ym, xm, y2); break; case 3: find(node, xm, ym, x2, y2); break; } } })(root, x0, y0, x3, y3); return closestPoint; } d3.interpolateRgb = d3_interpolateRgb; function d3_interpolateRgb(a, b) { a = d3.rgb(a); b = d3.rgb(b); var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab; return function(t) { return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t)); }; } d3.interpolateObject = d3_interpolateObject; function d3_interpolateObject(a, b) { var i = {}, c = {}, k; for (k in a) { if (k in b) { i[k] = d3_interpolate(a[k], b[k]); } else { c[k] = a[k]; } } for (k in b) { if (!(k in a)) { c[k] = b[k]; } } return function(t) { for (k in i) c[k] = i[k](t); return c; }; } d3.interpolateNumber = d3_interpolateNumber; function d3_interpolateNumber(a, b) { a = +a, b = +b; return function(t) { return a * (1 - t) + b * t; }; } d3.interpolateString = d3_interpolateString; function d3_interpolateString(a, b) { var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = []; a = a + "", b = b + ""; while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) { if ((bs = bm.index) > bi) { bs = b.slice(bi, bs); if (s[i]) s[i] += bs; else s[++i] = bs; } if ((am = am[0]) === (bm = bm[0])) { if (s[i]) s[i] += bm; else s[++i] = bm; } else { s[++i] = null; q.push({ i: i, x: d3_interpolateNumber(am, bm) }); } bi = d3_interpolate_numberB.lastIndex; } if (bi < b.length) { bs = b.slice(bi); if (s[i]) s[i] += bs; else s[++i] = bs; } return s.length < 2 ? q[0] ? (b = q[0].x, function(t) { return b(t) + ""; }) : function() { return b; } : (b = q.length, function(t) { for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t); return s.join(""); }); } var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g"); d3.interpolate = d3_interpolate; function d3_interpolate(a, b) { var i = d3.interpolators.length, f; while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ; return f; } d3.interpolators = [ function(a, b) { var t = typeof b; return (t === "string" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\(|hsl\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b); } ]; d3.interpolateArray = d3_interpolateArray; function d3_interpolateArray(a, b) { var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i; for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i])); for (;i < na; ++i) c[i] = a[i]; for (;i < nb; ++i) c[i] = b[i]; return function(t) { for (i = 0; i < n0; ++i) c[i] = x[i](t); return c; }; } var d3_ease_default = function() { return d3_identity; }; var d3_ease = d3.map({ linear: d3_ease_default, poly: d3_ease_poly, quad: function() { return d3_ease_quad; }, cubic: function() { return d3_ease_cubic; }, sin: function() { return d3_ease_sin; }, exp: function() { return d3_ease_exp; }, circle: function() { return d3_ease_circle; }, elastic: d3_ease_elastic, back: d3_ease_back, bounce: function() { return d3_ease_bounce; } }); var d3_ease_mode = d3.map({ "in": d3_identity, out: d3_ease_reverse, "in-out": d3_ease_reflect, "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); } }); d3.ease = function(name) { var i = name.indexOf("-"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : "in"; t = d3_ease.get(t) || d3_ease_default; m = d3_ease_mode.get(m) || d3_identity; return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1)))); }; function d3_ease_clamp(f) { return function(t) { return t <= 0 ? 0 : t >= 1 ? 1 : f(t); }; } function d3_ease_reverse(f) { return function(t) { return 1 - f(1 - t); }; } function d3_ease_reflect(f) { return function(t) { return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t)); }; } function d3_ease_quad(t) { return t * t; } function d3_ease_cubic(t) { return t * t * t; } function d3_ease_cubicInOut(t) { if (t <= 0) return 0; if (t >= 1) return 1; var t2 = t * t, t3 = t2 * t; return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75); } function d3_ease_poly(e) { return function(t) { return Math.pow(t, e); }; } function d3_ease_sin(t) { return 1 - Math.cos(t * halfπ); } function d3_ease_exp(t) { return Math.pow(2, 10 * (t - 1)); } function d3_ease_circle(t) { return 1 - Math.sqrt(1 - t * t); } function d3_ease_elastic(a, p) { var s; if (arguments.length < 2) p = .45; if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4; return function(t) { return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p); }; } function d3_ease_back(s) { if (!s) s = 1.70158; return function(t) { return t * t * ((s + 1) * t - s); }; } function d3_ease_bounce(t) { return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375; } d3.interpolateHcl = d3_interpolateHcl; function d3_interpolateHcl(a, b) { a = d3.hcl(a); b = d3.hcl(b); var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al; if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac; if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360; return function(t) { return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + ""; }; } d3.interpolateHsl = d3_interpolateHsl; function d3_interpolateHsl(a, b) { a = d3.hsl(a); b = d3.hsl(b); var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al; if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as; if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360; return function(t) { return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + ""; }; } d3.interpolateLab = d3_interpolateLab; function d3_interpolateLab(a, b) { a = d3.lab(a); b = d3.lab(b); var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab; return function(t) { return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + ""; }; } d3.interpolateRound = d3_interpolateRound; function d3_interpolateRound(a, b) { b -= a; return function(t) { return Math.round(a + b * t); }; } d3.transform = function(string) { var g = d3_document.createElementNS(d3.ns.prefix.svg, "g"); return (d3.transform = function(string) { if (string != null) { g.setAttribute("transform", string); var t = g.transform.baseVal.consolidate(); } return new d3_transform(t ? t.matrix : d3_transformIdentity); })(string); }; function d3_transform(m) { var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0; if (r0[0] * r1[1] < r1[0] * r0[1]) { r0[0] *= -1; r0[1] *= -1; kx *= -1; kz *= -1; } this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees; this.translate = [ m.e, m.f ]; this.scale = [ kx, ky ]; this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0; } d3_transform.prototype.toString = function() { return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")"; }; function d3_transformDot(a, b) { return a[0] * b[0] + a[1] * b[1]; } function d3_transformNormalize(a) { var k = Math.sqrt(d3_transformDot(a, a)); if (k) { a[0] /= k; a[1] /= k; } return k; } function d3_transformCombine(a, b, k) { a[0] += k * b[0]; a[1] += k * b[1]; return a; } var d3_transformIdentity = { a: 1, b: 0, c: 0, d: 1, e: 0, f: 0 }; d3.interpolateTransform = d3_interpolateTransform; function d3_interpolateTransformPop(s) { return s.length ? s.pop() + "," : ""; } function d3_interpolateTranslate(ta, tb, s, q) { if (ta[0] !== tb[0] || ta[1] !== tb[1]) { var i = s.push("translate(", null, ",", null, ")"); q.push({ i: i - 4, x: d3_interpolateNumber(ta[0], tb[0]) }, { i: i - 2, x: d3_interpolateNumber(ta[1], tb[1]) }); } else if (tb[0] || tb[1]) { s.push("translate(" + tb + ")"); } } function d3_interpolateRotate(ra, rb, s, q) { if (ra !== rb) { if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360; q.push({ i: s.push(d3_interpolateTransformPop(s) + "rotate(", null, ")") - 2, x: d3_interpolateNumber(ra, rb) }); } else if (rb) { s.push(d3_interpolateTransformPop(s) + "rotate(" + rb + ")"); } } function d3_interpolateSkew(wa, wb, s, q) { if (wa !== wb) { q.push({ i: s.push(d3_interpolateTransformPop(s) + "skewX(", null, ")") - 2, x: d3_interpolateNumber(wa, wb) }); } else if (wb) { s.push(d3_interpolateTransformPop(s) + "skewX(" + wb + ")"); } } function d3_interpolateScale(ka, kb, s, q) { if (ka[0] !== kb[0] || ka[1] !== kb[1]) { var i = s.push(d3_interpolateTransformPop(s) + "scale(", null, ",", null, ")"); q.push({ i: i - 4, x: d3_interpolateNumber(ka[0], kb[0]) }, { i: i - 2, x: d3_interpolateNumber(ka[1], kb[1]) }); } else if (kb[0] !== 1 || kb[1] !== 1) { s.push(d3_interpolateTransformPop(s) + "scale(" + kb + ")"); } } function d3_interpolateTransform(a, b) { var s = [], q = []; a = d3.transform(a), b = d3.transform(b); d3_interpolateTranslate(a.translate, b.translate, s, q); d3_interpolateRotate(a.rotate, b.rotate, s, q); d3_interpolateSkew(a.skew, b.skew, s, q); d3_interpolateScale(a.scale, b.scale, s, q); a = b = null; return function(t) { var i = -1, n = q.length, o; while (++i < n) s[(o = q[i]).i] = o.x(t); return s.join(""); }; } function d3_uninterpolateNumber(a, b) { b = (b -= a = +a) || 1 / b; return function(x) { return (x - a) / b; }; } function d3_uninterpolateClamp(a, b) { b = (b -= a = +a) || 1 / b; return function(x) { return Math.max(0, Math.min(1, (x - a) / b)); }; } d3.layout = {}; d3.layout.bundle = function() { return function(links) { var paths = [], i = -1, n = links.length; while (++i < n) paths.push(d3_layout_bundlePath(links[i])); return paths; }; }; function d3_layout_bundlePath(link) { var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ]; while (start !== lca) { start = start.parent; points.push(start); } var k = points.length; while (end !== lca) { points.splice(k, 0, end); end = end.parent; } return points; } function d3_layout_bundleAncestors(node) { var ancestors = [], parent = node.parent; while (parent != null) { ancestors.push(node); node = parent; parent = parent.parent; } ancestors.push(node); return ancestors; } function d3_layout_bundleLeastCommonAncestor(a, b) { if (a === b) return a; var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null; while (aNode === bNode) { sharedNode = aNode; aNode = aNodes.pop(); bNode = bNodes.pop(); } return sharedNode; } d3.layout.chord = function() { var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords; function relayout() { var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j; chords = []; groups = []; k = 0, i = -1; while (++i < n) { x = 0, j = -1; while (++j < n) { x += matrix[i][j]; } groupSums.push(x); subgroupIndex.push(d3.range(n)); k += x; } if (sortGroups) { groupIndex.sort(function(a, b) { return sortGroups(groupSums[a], groupSums[b]); }); } if (sortSubgroups) { subgroupIndex.forEach(function(d, i) { d.sort(function(a, b) { return sortSubgroups(matrix[i][a], matrix[i][b]); }); }); } k = (τ - padding * n) / k; x = 0, i = -1; while (++i < n) { x0 = x, j = -1; while (++j < n) { var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k; subgroups[di + "-" + dj] = { index: di, subindex: dj, startAngle: a0, endAngle: a1, value: v }; } groups[di] = { index: di, startAngle: x0, endAngle: x, value: groupSums[di] }; x += padding; } i = -1; while (++i < n) { j = i - 1; while (++j < n) { var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i]; if (source.value || target.value) { chords.push(source.value < target.value ? { source: target, target: source } : { source: source, target: target }); } } } if (sortChords) resort(); } function resort() { chords.sort(function(a, b) { return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2); }); } chord.matrix = function(x) { if (!arguments.length) return matrix; n = (matrix = x) && matrix.length; chords = groups = null; return chord; }; chord.padding = function(x) { if (!arguments.length) return padding; padding = x; chords = groups = null; return chord; }; chord.sortGroups = function(x) { if (!arguments.length) return sortGroups; sortGroups = x; chords = groups = null; return chord; }; chord.sortSubgroups = function(x) { if (!arguments.length) return sortSubgroups; sortSubgroups = x; chords = null; return chord; }; chord.sortChords = function(x) { if (!arguments.length) return sortChords; sortChords = x; if (chords) resort(); return chord; }; chord.chords = function() { if (!chords) relayout(); return chords; }; chord.groups = function() { if (!groups) relayout(); return groups; }; return chord; }; d3.layout.force = function() { var force = {}, event = d3.dispatch("start", "tick", "end"), timer, size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges; function repulse(node) { return function(quad, x1, _, x2) { if (quad.point !== node) { var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy; if (dw * dw / theta2 < dn) { if (dn < chargeDistance2) { var k = quad.charge / dn; node.px -= dx * k; node.py -= dy * k; } return true; } if (quad.point && dn && dn < chargeDistance2) { var k = quad.pointCharge / dn; node.px -= dx * k; node.py -= dy * k; } } return !quad.charge; }; } force.tick = function() { if ((alpha *= .99) < .005) { timer = null; event.end({ type: "end", alpha: alpha = 0 }); return true; } var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y; for (i = 0; i < m; ++i) { o = links[i]; s = o.source; t = o.target; x = t.x - s.x; y = t.y - s.y; if (l = x * x + y * y) { l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l; x *= l; y *= l; t.x -= x * (k = s.weight + t.weight ? s.weight / (s.weight + t.weight) : .5); t.y -= y * k; s.x += x * (k = 1 - k); s.y += y * k; } } if (k = alpha * gravity) { x = size[0] / 2; y = size[1] / 2; i = -1; if (k) while (++i < n) { o = nodes[i]; o.x += (x - o.x) * k; o.y += (y - o.y) * k; } } if (charge) { d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges); i = -1; while (++i < n) { if (!(o = nodes[i]).fixed) { q.visit(repulse(o)); } } } i = -1; while (++i < n) { o = nodes[i]; if (o.fixed) { o.x = o.px; o.y = o.py; } else { o.x -= (o.px - (o.px = o.x)) * friction; o.y -= (o.py - (o.py = o.y)) * friction; } } event.tick({ type: "tick", alpha: alpha }); }; force.nodes = function(x) { if (!arguments.length) return nodes; nodes = x; return force; }; force.links = function(x) { if (!arguments.length) return links; links = x; return force; }; force.size = function(x) { if (!arguments.length) return size; size = x; return force; }; force.linkDistance = function(x) { if (!arguments.length) return linkDistance; linkDistance = typeof x === "function" ? x : +x; return force; }; force.distance = force.linkDistance; force.linkStrength = function(x) { if (!arguments.length) return linkStrength; linkStrength = typeof x === "function" ? x : +x; return force; }; force.friction = function(x) { if (!arguments.length) return friction; friction = +x; return force; }; force.charge = function(x) { if (!arguments.length) return charge; charge = typeof x === "function" ? x : +x; return force; }; force.chargeDistance = function(x) { if (!arguments.length) return Math.sqrt(chargeDistance2); chargeDistance2 = x * x; return force; }; force.gravity = function(x) { if (!arguments.length) return gravity; gravity = +x; return force; }; force.theta = function(x) { if (!arguments.length) return Math.sqrt(theta2); theta2 = x * x; return force; }; force.alpha = function(x) { if (!arguments.length) return alpha; x = +x; if (alpha) { if (x > 0) { alpha = x; } else { timer.c = null, timer.t = NaN, timer = null; event.end({ type: "end", alpha: alpha = 0 }); } } else if (x > 0) { event.start({ type: "start", alpha: alpha = x }); timer = d3_timer(force.tick); } return force; }; force.start = function() { var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o; for (i = 0; i < n; ++i) { (o = nodes[i]).index = i; o.weight = 0; } for (i = 0; i < m; ++i) { o = links[i]; if (typeof o.source == "number") o.source = nodes[o.source]; if (typeof o.target == "number") o.target = nodes[o.target]; ++o.source.weight; ++o.target.weight; } for (i = 0; i < n; ++i) { o = nodes[i]; if (isNaN(o.x)) o.x = position("x", w); if (isNaN(o.y)) o.y = position("y", h); if (isNaN(o.px)) o.px = o.x; if (isNaN(o.py)) o.py = o.y; } distances = []; if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance; strengths = []; if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength; charges = []; if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge; function position(dimension, size) { if (!neighbors) { neighbors = new Array(n); for (j = 0; j < n; ++j) { neighbors[j] = []; } for (j = 0; j < m; ++j) { var o = links[j]; neighbors[o.source.index].push(o.target); neighbors[o.target.index].push(o.source); } } var candidates = neighbors[i], j = -1, l = candidates.length, x; while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x; return Math.random() * size; } return force.resume(); }; force.resume = function() { return force.alpha(.1); }; force.stop = function() { return force.alpha(0); }; force.drag = function() { if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend); if (!arguments.length) return drag; this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag); }; function dragmove(d) { d.px = d3.event.x, d.py = d3.event.y; force.resume(); } return d3.rebind(force, event, "on"); }; function d3_layout_forceDragstart(d) { d.fixed |= 2; } function d3_layout_forceDragend(d) { d.fixed &= ~6; } function d3_layout_forceMouseover(d) { d.fixed |= 4; d.px = d.x, d.py = d.y; } function d3_layout_forceMouseout(d) { d.fixed &= ~4; } function d3_layout_forceAccumulate(quad, alpha, charges) { var cx = 0, cy = 0; quad.charge = 0; if (!quad.leaf) { var nodes = quad.nodes, n = nodes.length, i = -1, c; while (++i < n) { c = nodes[i]; if (c == null) continue; d3_layout_forceAccumulate(c, alpha, charges); quad.charge += c.charge; cx += c.charge * c.cx; cy += c.charge * c.cy; } } if (quad.point) { if (!quad.leaf) { quad.point.x += Math.random() - .5; quad.point.y += Math.random() - .5; } var k = alpha * charges[quad.point.index]; quad.charge += quad.pointCharge = k; cx += k * quad.point.x; cy += k * quad.point.y; } quad.cx = cx / quad.charge; quad.cy = cy / quad.charge; } var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity; d3.layout.hierarchy = function() { var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue; function hierarchy(root) { var stack = [ root ], nodes = [], node; root.depth = 0; while ((node = stack.pop()) != null) { nodes.push(node); if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) { var n, childs, child; while (--n >= 0) { stack.push(child = childs[n]); child.parent = node; child.depth = node.depth + 1; } if (value) node.value = 0; node.children = childs; } else { if (value) node.value = +value.call(hierarchy, node, node.depth) || 0; delete node.children; } } d3_layout_hierarchyVisitAfter(root, function(node) { var childs, parent; if (sort && (childs = node.children)) childs.sort(sort); if (value && (parent = node.parent)) parent.value += node.value; }); return nodes; } hierarchy.sort = function(x) { if (!arguments.length) return sort; sort = x; return hierarchy; }; hierarchy.children = function(x) { if (!arguments.length) return children; children = x; return hierarchy; }; hierarchy.value = function(x) { if (!arguments.length) return value; value = x; return hierarchy; }; hierarchy.revalue = function(root) { if (value) { d3_layout_hierarchyVisitBefore(root, function(node) { if (node.children) node.value = 0; }); d3_layout_hierarchyVisitAfter(root, function(node) { var parent; if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0; if (parent = node.parent) parent.value += node.value; }); } return root; }; return hierarchy; }; function d3_layout_hierarchyRebind(object, hierarchy) { d3.rebind(object, hierarchy, "sort", "children", "value"); object.nodes = object; object.links = d3_layout_hierarchyLinks; return object; } function d3_layout_hierarchyVisitBefore(node, callback) { var nodes = [ node ]; while ((node = nodes.pop()) != null) { callback(node); if ((children = node.children) && (n = children.length)) { var n, children; while (--n >= 0) nodes.push(children[n]); } } } function d3_layout_hierarchyVisitAfter(node, callback) { var nodes = [ node ], nodes2 = []; while ((node = nodes.pop()) != null) { nodes2.push(node); if ((children = node.children) && (n = children.length)) { var i = -1, n, children; while (++i < n) nodes.push(children[i]); } } while ((node = nodes2.pop()) != null) { callback(node); } } function d3_layout_hierarchyChildren(d) { return d.children; } function d3_layout_hierarchyValue(d) { return d.value; } function d3_layout_hierarchySort(a, b) { return b.value - a.value; } function d3_layout_hierarchyLinks(nodes) { return d3.merge(nodes.map(function(parent) { return (parent.children || []).map(function(child) { return { source: parent, target: child }; }); })); } d3.layout.partition = function() { var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ]; function position(node, x, dx, dy) { var children = node.children; node.x = x; node.y = node.depth * dy; node.dx = dx; node.dy = dy; if (children && (n = children.length)) { var i = -1, n, c, d; dx = node.value ? dx / node.value : 0; while (++i < n) { position(c = children[i], x, d = c.value * dx, dy); x += d; } } } function depth(node) { var children = node.children, d = 0; if (children && (n = children.length)) { var i = -1, n; while (++i < n) d = Math.max(d, depth(children[i])); } return 1 + d; } function partition(d, i) { var nodes = hierarchy.call(this, d, i); position(nodes[0], 0, size[0], size[1] / depth(nodes[0])); return nodes; } partition.size = function(x) { if (!arguments.length) return size; size = x; return partition; }; return d3_layout_hierarchyRebind(partition, hierarchy); }; d3.layout.pie = function() { var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0; function pie(data) { var n = data.length, values = data.map(function(d, i) { return +value.call(pie, d, i); }), a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === "function" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), sum = d3.sum(values), k = sum ? (da - n * pa) / sum : 0, index = d3.range(n), arcs = [], v; if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) { return values[j] - values[i]; } : function(i, j) { return sort(data[i], data[j]); }); index.forEach(function(i) { arcs[i] = { data: data[i], value: v = values[i], startAngle: a, endAngle: a += v * k + pa, padAngle: p }; }); return arcs; } pie.value = function(_) { if (!arguments.length) return value; value = _; return pie; }; pie.sort = function(_) { if (!arguments.length) return sort; sort = _; return pie; }; pie.startAngle = function(_) { if (!arguments.length) return startAngle; startAngle = _; return pie; }; pie.endAngle = function(_) { if (!arguments.length) return endAngle; endAngle = _; return pie; }; pie.padAngle = function(_) { if (!arguments.length) return padAngle; padAngle = _; return pie; }; return pie; }; var d3_layout_pieSortByValue = {}; d3.layout.stack = function() { var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY; function stack(data, index) { if (!(n = data.length)) return data; var series = data.map(function(d, i) { return values.call(stack, d, i); }); var points = series.map(function(d) { return d.map(function(v, i) { return [ x.call(stack, v, i), y.call(stack, v, i) ]; }); }); var orders = order.call(stack, points, index); series = d3.permute(series, orders); points = d3.permute(points, orders); var offsets = offset.call(stack, points, index); var m = series[0].length, n, i, j, o; for (j = 0; j < m; ++j) { out.call(stack, series[0][j], o = offsets[j], points[0][j][1]); for (i = 1; i < n; ++i) { out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]); } } return data; } stack.values = function(x) { if (!arguments.length) return values; values = x; return stack; }; stack.order = function(x) { if (!arguments.length) return order; order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault; return stack; }; stack.offset = function(x) { if (!arguments.length) return offset; offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero; return stack; }; stack.x = function(z) { if (!arguments.length) return x; x = z; return stack; }; stack.y = function(z) { if (!arguments.length) return y; y = z; return stack; }; stack.out = function(z) { if (!arguments.length) return out; out = z; return stack; }; return stack; }; function d3_layout_stackX(d) { return d.x; } function d3_layout_stackY(d) { return d.y; } function d3_layout_stackOut(d, y0, y) { d.y0 = y0; d.y = y; } var d3_layout_stackOrders = d3.map({ "inside-out": function(data) { var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }), top = 0, bottom = 0, tops = [], bottoms = []; for (i = 0; i < n; ++i) { j = index[i]; if (top < bottom) { top += sums[j]; tops.push(j); } else { bottom += sums[j]; bottoms.push(j); } } return bottoms.reverse().concat(tops); }, reverse: function(data) { return d3.range(data.length).reverse(); }, "default": d3_layout_stackOrderDefault }); var d3_layout_stackOffsets = d3.map({ silhouette: function(data) { var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = []; for (j = 0; j < m; ++j) { for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; if (o > max) max = o; sums.push(o); } for (j = 0; j < m; ++j) { y0[j] = (max - sums[j]) / 2; } return y0; }, wiggle: function(data) { var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = []; y0[0] = o = o0 = 0; for (j = 1; j < m; ++j) { for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1]; for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) { for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) { s3 += (data[k][j][1] - data[k][j - 1][1]) / dx; } s2 += s3 * data[i][j][1]; } y0[j] = o -= s1 ? s2 / s1 * dx : 0; if (o < o0) o0 = o; } for (j = 0; j < m; ++j) y0[j] -= o0; return y0; }, expand: function(data) { var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = []; for (j = 0; j < m; ++j) { for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k; } for (j = 0; j < m; ++j) y0[j] = 0; return y0; }, zero: d3_layout_stackOffsetZero }); function d3_layout_stackOrderDefault(data) { return d3.range(data.length); } function d3_layout_stackOffsetZero(data) { var j = -1, m = data[0].length, y0 = []; while (++j < m) y0[j] = 0; return y0; } function d3_layout_stackMaxIndex(array) { var i = 1, j = 0, v = array[0][1], k, n = array.length; for (;i < n; ++i) { if ((k = array[i][1]) > v) { j = i; v = k; } } return j; } function d3_layout_stackReduceSum(d) { return d.reduce(d3_layout_stackSum, 0); } function d3_layout_stackSum(p, d) { return p + d[1]; } d3.layout.histogram = function() { var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges; function histogram(data, i) { var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x; while (++i < m) { bin = bins[i] = []; bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]); bin.y = 0; } if (m > 0) { i = -1; while (++i < n) { x = values[i]; if (x >= range[0] && x <= range[1]) { bin = bins[d3.bisect(thresholds, x, 1, m) - 1]; bin.y += k; bin.push(data[i]); } } } return bins; } histogram.value = function(x) { if (!arguments.length) return valuer; valuer = x; return histogram; }; histogram.range = function(x) { if (!arguments.length) return ranger; ranger = d3_functor(x); return histogram; }; histogram.bins = function(x) { if (!arguments.length) return binner; binner = typeof x === "number" ? function(range) { return d3_layout_histogramBinFixed(range, x); } : d3_functor(x); return histogram; }; histogram.frequency = function(x) { if (!arguments.length) return frequency; frequency = !!x; return histogram; }; return histogram; }; function d3_layout_histogramBinSturges(range, values) { return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1)); } function d3_layout_histogramBinFixed(range, n) { var x = -1, b = +range[0], m = (range[1] - b) / n, f = []; while (++x <= n) f[x] = m * x + b; return f; } function d3_layout_histogramRange(values) { return [ d3.min(values), d3.max(values) ]; } d3.layout.pack = function() { var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius; function pack(d, i) { var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() { return radius; }; root.x = root.y = 0; d3_layout_hierarchyVisitAfter(root, function(d) { d.r = +r(d.value); }); d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings); if (padding) { var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2; d3_layout_hierarchyVisitAfter(root, function(d) { d.r += dr; }); d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings); d3_layout_hierarchyVisitAfter(root, function(d) { d.r -= dr; }); } d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h)); return nodes; } pack.size = function(_) { if (!arguments.length) return size; size = _; return pack; }; pack.radius = function(_) { if (!arguments.length) return radius; radius = _ == null || typeof _ === "function" ? _ : +_; return pack; }; pack.padding = function(_) { if (!arguments.length) return padding; padding = +_; return pack; }; return d3_layout_hierarchyRebind(pack, hierarchy); }; function d3_layout_packSort(a, b) { return a.value - b.value; } function d3_layout_packInsert(a, b) { var c = a._pack_next; a._pack_next = b; b._pack_prev = a; b._pack_next = c; c._pack_prev = b; } function d3_layout_packSplice(a, b) { a._pack_next = b; b._pack_prev = a; } function d3_layout_packIntersects(a, b) { var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r; return .999 * dr * dr > dx * dx + dy * dy; } function d3_layout_packSiblings(node) { if (!(nodes = node.children) || !(n = nodes.length)) return; var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n; function bound(node) { xMin = Math.min(node.x - node.r, xMin); xMax = Math.max(node.x + node.r, xMax); yMin = Math.min(node.y - node.r, yMin); yMax = Math.max(node.y + node.r, yMax); } nodes.forEach(d3_layout_packLink); a = nodes[0]; a.x = -a.r; a.y = 0; bound(a); if (n > 1) { b = nodes[1]; b.x = b.r; b.y = 0; bound(b); if (n > 2) { c = nodes[2]; d3_layout_packPlace(a, b, c); bound(c); d3_layout_packInsert(a, c); a._pack_prev = c; d3_layout_packInsert(c, b); b = a._pack_next; for (i = 3; i < n; i++) { d3_layout_packPlace(a, b, c = nodes[i]); var isect = 0, s1 = 1, s2 = 1; for (j = b._pack_next; j !== b; j = j._pack_next, s1++) { if (d3_layout_packIntersects(j, c)) { isect = 1; break; } } if (isect == 1) { for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) { if (d3_layout_packIntersects(k, c)) { break; } } } if (isect) { if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b); i--; } else { d3_layout_packInsert(a, c); b = c; bound(c); } } } } var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0; for (i = 0; i < n; i++) { c = nodes[i]; c.x -= cx; c.y -= cy; cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y)); } node.r = cr; nodes.forEach(d3_layout_packUnlink); } function d3_layout_packLink(node) { node._pack_next = node._pack_prev = node; } function d3_layout_packUnlink(node) { delete node._pack_next; delete node._pack_prev; } function d3_layout_packTransform(node, x, y, k) { var children = node.children; node.x = x += k * node.x; node.y = y += k * node.y; node.r *= k; if (children) { var i = -1, n = children.length; while (++i < n) d3_layout_packTransform(children[i], x, y, k); } } function d3_layout_packPlace(a, b, c) { var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y; if (db && (dx || dy)) { var da = b.r + c.r, dc = dx * dx + dy * dy; da *= da; db *= db; var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc); c.x = a.x + x * dx + y * dy; c.y = a.y + x * dy - y * dx; } else { c.x = a.x + db; c.y = a.y; } } d3.layout.tree = function() { var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null; function tree(d, i) { var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0); d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z; d3_layout_hierarchyVisitBefore(root1, secondWalk); if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else { var left = root0, right = root0, bottom = root0; d3_layout_hierarchyVisitBefore(root0, function(node) { if (node.x < left.x) left = node; if (node.x > right.x) right = node; if (node.depth > bottom.depth) bottom = node; }); var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1); d3_layout_hierarchyVisitBefore(root0, function(node) { node.x = (node.x + tx) * kx; node.y = node.depth * ky; }); } return nodes; } function wrapTree(root0) { var root1 = { A: null, children: [ root0 ] }, queue = [ root1 ], node1; while ((node1 = queue.pop()) != null) { for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) { queue.push((children[i] = child = { _: children[i], parent: node1, children: (child = children[i].children) && child.slice() || [], A: null, a: null, z: 0, m: 0, c: 0, s: 0, t: null, i: i }).a = child); } } return root1.children[0]; } function firstWalk(v) { var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null; if (children.length) { d3_layout_treeShift(v); var midpoint = (children[0].z + children[children.length - 1].z) / 2; if (w) { v.z = w.z + separation(v._, w._); v.m = v.z - midpoint; } else { v.z = midpoint; } } else if (w) { v.z = w.z + separation(v._, w._); } v.parent.A = apportion(v, w, v.parent.A || siblings[0]); } function secondWalk(v) { v._.x = v.z + v.parent.m; v.m += v.parent.m; } function apportion(v, w, ancestor) { if (w) { var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift; while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) { vom = d3_layout_treeLeft(vom); vop = d3_layout_treeRight(vop); vop.a = v; shift = vim.z + sim - vip.z - sip + separation(vim._, vip._); if (shift > 0) { d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift); sip += shift; sop += shift; } sim += vim.m; sip += vip.m; som += vom.m; sop += vop.m; } if (vim && !d3_layout_treeRight(vop)) { vop.t = vim; vop.m += sim - sop; } if (vip && !d3_layout_treeLeft(vom)) { vom.t = vip; vom.m += sip - som; ancestor = v; } } return ancestor; } function sizeNode(node) { node.x *= size[0]; node.y = node.depth * size[1]; } tree.separation = function(x) { if (!arguments.length) return separation; separation = x; return tree; }; tree.size = function(x) { if (!arguments.length) return nodeSize ? null : size; nodeSize = (size = x) == null ? sizeNode : null; return tree; }; tree.nodeSize = function(x) { if (!arguments.length) return nodeSize ? size : null; nodeSize = (size = x) == null ? null : sizeNode; return tree; }; return d3_layout_hierarchyRebind(tree, hierarchy); }; function d3_layout_treeSeparation(a, b) { return a.parent == b.parent ? 1 : 2; } function d3_layout_treeLeft(v) { var children = v.children; return children.length ? children[0] : v.t; } function d3_layout_treeRight(v) { var children = v.children, n; return (n = children.length) ? children[n - 1] : v.t; } function d3_layout_treeMove(wm, wp, shift) { var change = shift / (wp.i - wm.i); wp.c -= change; wp.s += shift; wm.c += change; wp.z += shift; wp.m += shift; } function d3_layout_treeShift(v) { var shift = 0, change = 0, children = v.children, i = children.length, w; while (--i >= 0) { w = children[i]; w.z += shift; w.m += shift; shift += w.s + (change += w.c); } } function d3_layout_treeAncestor(vim, v, ancestor) { return vim.a.parent === v.parent ? vim.a : ancestor; } d3.layout.cluster = function() { var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false; function cluster(d, i) { var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0; d3_layout_hierarchyVisitAfter(root, function(node) { var children = node.children; if (children && children.length) { node.x = d3_layout_clusterX(children); node.y = d3_layout_clusterY(children); } else { node.x = previousNode ? x += separation(node, previousNode) : 0; node.y = 0; previousNode = node; } }); var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2; d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) { node.x = (node.x - root.x) * size[0]; node.y = (root.y - node.y) * size[1]; } : function(node) { node.x = (node.x - x0) / (x1 - x0) * size[0]; node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1]; }); return nodes; } cluster.separation = function(x) { if (!arguments.length) return separation; separation = x; return cluster; }; cluster.size = function(x) { if (!arguments.length) return nodeSize ? null : size; nodeSize = (size = x) == null; return cluster; }; cluster.nodeSize = function(x) { if (!arguments.length) return nodeSize ? size : null; nodeSize = (size = x) != null; return cluster; }; return d3_layout_hierarchyRebind(cluster, hierarchy); }; function d3_layout_clusterY(children) { return 1 + d3.max(children, function(child) { return child.y; }); } function d3_layout_clusterX(children) { return children.reduce(function(x, child) { return x + child.x; }, 0) / children.length; } function d3_layout_clusterLeft(node) { var children = node.children; return children && children.length ? d3_layout_clusterLeft(children[0]) : node; } function d3_layout_clusterRight(node) { var children = node.children, n; return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node; } d3.layout.treemap = function() { var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5)); function scale(children, k) { var i = -1, n = children.length, child, area; while (++i < n) { area = (child = children[i]).value * (k < 0 ? 0 : k); child.area = isNaN(area) || area <= 0 ? 0 : area; } } function squarify(node) { var children = node.children; if (children && children.length) { var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n; scale(remaining, rect.dx * rect.dy / node.value); row.area = 0; while ((n = remaining.length) > 0) { row.push(child = remaining[n - 1]); row.area += child.area; if (mode !== "squarify" || (score = worst(row, u)) <= best) { remaining.pop(); best = score; } else { row.area -= row.pop().area; position(row, u, rect, false); u = Math.min(rect.dx, rect.dy); row.length = row.area = 0; best = Infinity; } } if (row.length) { position(row, u, rect, true); row.length = row.area = 0; } children.forEach(squarify); } } function stickify(node) { var children = node.children; if (children && children.length) { var rect = pad(node), remaining = children.slice(), child, row = []; scale(remaining, rect.dx * rect.dy / node.value); row.area = 0; while (child = remaining.pop()) { row.push(child); row.area += child.area; if (child.z != null) { position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length); row.length = row.area = 0; } } children.forEach(stickify); } } function worst(row, u) { var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length; while (++i < n) { if (!(r = row[i].area)) continue; if (r < rmin) rmin = r; if (r > rmax) rmax = r; } s *= s; u *= u; return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity; } function position(row, u, rect, flush) { var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o; if (u == rect.dx) { if (flush || v > rect.dy) v = rect.dy; while (++i < n) { o = row[i]; o.x = x; o.y = y; o.dy = v; x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0); } o.z = true; o.dx += rect.x + rect.dx - x; rect.y += v; rect.dy -= v; } else { if (flush || v > rect.dx) v = rect.dx; while (++i < n) { o = row[i]; o.x = x; o.y = y; o.dx = v; y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0); } o.z = false; o.dy += rect.y + rect.dy - y; rect.x += v; rect.dx -= v; } } function treemap(d) { var nodes = stickies || hierarchy(d), root = nodes[0]; root.x = root.y = 0; if (root.value) root.dx = size[0], root.dy = size[1]; else root.dx = root.dy = 0; if (stickies) hierarchy.revalue(root); scale([ root ], root.dx * root.dy / root.value); (stickies ? stickify : squarify)(root); if (sticky) stickies = nodes; return nodes; } treemap.size = function(x) { if (!arguments.length) return size; size = x; return treemap; }; treemap.padding = function(x) { if (!arguments.length) return padding; function padFunction(node) { var p = x.call(treemap, node, node.depth); return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p); } function padConstant(node) { return d3_layout_treemapPad(node, x); } var type; pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], padConstant) : padConstant; return treemap; }; treemap.round = function(x) { if (!arguments.length) return round != Number; round = x ? Math.round : Number; return treemap; }; treemap.sticky = function(x) { if (!arguments.length) return sticky; sticky = x; stickies = null; return treemap; }; treemap.ratio = function(x) { if (!arguments.length) return ratio; ratio = x; return treemap; }; treemap.mode = function(x) { if (!arguments.length) return mode; mode = x + ""; return treemap; }; return d3_layout_hierarchyRebind(treemap, hierarchy); }; function d3_layout_treemapPadNull(node) { return { x: node.x, y: node.y, dx: node.dx, dy: node.dy }; } function d3_layout_treemapPad(node, padding) { var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2]; if (dx < 0) { x += dx / 2; dx = 0; } if (dy < 0) { y += dy / 2; dy = 0; } return { x: x, y: y, dx: dx, dy: dy }; } d3.random = { normal: function(µ, σ) { var n = arguments.length; if (n < 2) σ = 1; if (n < 1) µ = 0; return function() { var x, y, r; do { x = Math.random() * 2 - 1; y = Math.random() * 2 - 1; r = x * x + y * y; } while (!r || r > 1); return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r); }; }, logNormal: function() { var random = d3.random.normal.apply(d3, arguments); return function() { return Math.exp(random()); }; }, bates: function(m) { var random = d3.random.irwinHall(m); return function() { return random() / m; }; }, irwinHall: function(m) { return function() { for (var s = 0, j = 0; j < m; j++) s += Math.random(); return s; }; } }; d3.scale = {}; function d3_scaleExtent(domain) { var start = domain[0], stop = domain[domain.length - 1]; return start < stop ? [ start, stop ] : [ stop, start ]; } function d3_scaleRange(scale) { return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range()); } function d3_scale_bilinear(domain, range, uninterpolate, interpolate) { var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]); return function(x) { return i(u(x)); }; } function d3_scale_nice(domain, nice) { var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx; if (x1 < x0) { dx = i0, i0 = i1, i1 = dx; dx = x0, x0 = x1, x1 = dx; } domain[i0] = nice.floor(x0); domain[i1] = nice.ceil(x1); return domain; } function d3_scale_niceStep(step) { return step ? { floor: function(x) { return Math.floor(x / step) * step; }, ceil: function(x) { return Math.ceil(x / step) * step; } } : d3_scale_niceIdentity; } var d3_scale_niceIdentity = { floor: d3_identity, ceil: d3_identity }; function d3_scale_polylinear(domain, range, uninterpolate, interpolate) { var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1; if (domain[k] < domain[0]) { domain = domain.slice().reverse(); range = range.slice().reverse(); } while (++j <= k) { u.push(uninterpolate(domain[j - 1], domain[j])); i.push(interpolate(range[j - 1], range[j])); } return function(x) { var j = d3.bisect(domain, x, 1, k) - 1; return i[j](u[j](x)); }; } d3.scale.linear = function() { return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false); }; function d3_scale_linear(domain, range, interpolate, clamp) { var output, input; function rescale() { var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber; output = linear(domain, range, uninterpolate, interpolate); input = linear(range, domain, uninterpolate, d3_interpolate); return scale; } function scale(x) { return output(x); } scale.invert = function(y) { return input(y); }; scale.domain = function(x) { if (!arguments.length) return domain; domain = x.map(Number); return rescale(); }; scale.range = function(x) { if (!arguments.length) return range; range = x; return rescale(); }; scale.rangeRound = function(x) { return scale.range(x).interpolate(d3_interpolateRound); }; scale.clamp = function(x) { if (!arguments.length) return clamp; clamp = x; return rescale(); }; scale.interpolate = function(x) { if (!arguments.length) return interpolate; interpolate = x; return rescale(); }; scale.ticks = function(m) { return d3_scale_linearTicks(domain, m); }; scale.tickFormat = function(m, format) { return d3_scale_linearTickFormat(domain, m, format); }; scale.nice = function(m) { d3_scale_linearNice(domain, m); return rescale(); }; scale.copy = function() { return d3_scale_linear(domain, range, interpolate, clamp); }; return rescale(); } function d3_scale_linearRebind(scale, linear) { return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); } function d3_scale_linearNice(domain, m) { d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2])); d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2])); return domain; } function d3_scale_linearTickRange(domain, m) { if (m == null) m = 10; var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step; if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2; extent[0] = Math.ceil(extent[0] / step) * step; extent[1] = Math.floor(extent[1] / step) * step + step * .5; extent[2] = step; return extent; } function d3_scale_linearTicks(domain, m) { return d3.range.apply(d3, d3_scale_linearTickRange(domain, m)); } function d3_scale_linearTickFormat(domain, m, format) { var range = d3_scale_linearTickRange(domain, m); if (format) { var match = d3_format_re.exec(format); match.shift(); if (match[8] === "s") { var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1]))); if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2])); match[8] = "f"; format = d3.format(match.join("")); return function(d) { return format(prefix.scale(d)) + prefix.symbol; }; } if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range); format = match.join(""); } else { format = ",." + d3_scale_linearPrecision(range[2]) + "f"; } return d3.format(format); } var d3_scale_linearFormatSignificant = { s: 1, g: 1, p: 1, r: 1, e: 1 }; function d3_scale_linearPrecision(value) { return -Math.floor(Math.log(value) / Math.LN10 + .01); } function d3_scale_linearFormatPrecision(type, range) { var p = d3_scale_linearPrecision(range[2]); return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2; } d3.scale.log = function() { return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]); }; function d3_scale_log(linear, base, positive, domain) { function log(x) { return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base); } function pow(x) { return positive ? Math.pow(base, x) : -Math.pow(base, -x); } function scale(x) { return linear(log(x)); } scale.invert = function(x) { return pow(linear.invert(x)); }; scale.domain = function(x) { if (!arguments.length) return domain; positive = x[0] >= 0; linear.domain((domain = x.map(Number)).map(log)); return scale; }; scale.base = function(_) { if (!arguments.length) return base; base = +_; linear.domain(domain.map(log)); return scale; }; scale.nice = function() { var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative); linear.domain(niced); domain = niced.map(pow); return scale; }; scale.ticks = function() { var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base; if (isFinite(j - i)) { if (positive) { for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k); ticks.push(pow(i)); } else { ticks.push(pow(i)); for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k); } for (i = 0; ticks[i] < u; i++) {} for (j = ticks.length; ticks[j - 1] > v; j--) {} ticks = ticks.slice(i, j); } return ticks; }; scale.tickFormat = function(n, format) { if (!arguments.length) return d3_scale_logFormat; if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format); var k = Math.max(1, base * n / scale.ticks().length); return function(d) { var i = d / pow(Math.round(log(d))); if (i * base < base - .5) i *= base; return i <= k ? format(d) : ""; }; }; scale.copy = function() { return d3_scale_log(linear.copy(), base, positive, domain); }; return d3_scale_linearRebind(scale, linear); } var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = { floor: function(x) { return -Math.ceil(-x); }, ceil: function(x) { return -Math.floor(-x); } }; d3.scale.pow = function() { return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]); }; function d3_scale_pow(linear, exponent, domain) { var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent); function scale(x) { return linear(powp(x)); } scale.invert = function(x) { return powb(linear.invert(x)); }; scale.domain = function(x) { if (!arguments.length) return domain; linear.domain((domain = x.map(Number)).map(powp)); return scale; }; scale.ticks = function(m) { return d3_scale_linearTicks(domain, m); }; scale.tickFormat = function(m, format) { return d3_scale_linearTickFormat(domain, m, format); }; scale.nice = function(m) { return scale.domain(d3_scale_linearNice(domain, m)); }; scale.exponent = function(x) { if (!arguments.length) return exponent; powp = d3_scale_powPow(exponent = x); powb = d3_scale_powPow(1 / exponent); linear.domain(domain.map(powp)); return scale; }; scale.copy = function() { return d3_scale_pow(linear.copy(), exponent, domain); }; return d3_scale_linearRebind(scale, linear); } function d3_scale_powPow(e) { return function(x) { return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e); }; } d3.scale.sqrt = function() { return d3.scale.pow().exponent(.5); }; d3.scale.ordinal = function() { return d3_scale_ordinal([], { t: "range", a: [ [] ] }); }; function d3_scale_ordinal(domain, ranger) { var index, range, rangeBand; function scale(x) { return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length]; } function steps(start, step) { return d3.range(domain.length).map(function(i) { return start + step * i; }); } scale.domain = function(x) { if (!arguments.length) return domain; domain = []; index = new d3_Map(); var i = -1, n = x.length, xi; while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi)); return scale[ranger.t].apply(scale, ranger.a); }; scale.range = function(x) { if (!arguments.length) return range; range = x; rangeBand = 0; ranger = { t: "range", a: arguments }; return scale; }; scale.rangePoints = function(x, padding) { if (arguments.length < 2) padding = 0; var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, 0) : (stop - start) / (domain.length - 1 + padding); range = steps(start + step * padding / 2, step); rangeBand = 0; ranger = { t: "rangePoints", a: arguments }; return scale; }; scale.rangeRoundPoints = function(x, padding) { if (arguments.length < 2) padding = 0; var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), 0) : (stop - start) / (domain.length - 1 + padding) | 0; range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step); rangeBand = 0; ranger = { t: "rangeRoundPoints", a: arguments }; return scale; }; scale.rangeBands = function(x, padding, outerPadding) { if (arguments.length < 2) padding = 0; if (arguments.length < 3) outerPadding = padding; var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding); range = steps(start + step * outerPadding, step); if (reverse) range.reverse(); rangeBand = step * (1 - padding); ranger = { t: "rangeBands", a: arguments }; return scale; }; scale.rangeRoundBands = function(x, padding, outerPadding) { if (arguments.length < 2) padding = 0; if (arguments.length < 3) outerPadding = padding; var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding)); range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step); if (reverse) range.reverse(); rangeBand = Math.round(step * (1 - padding)); ranger = { t: "rangeRoundBands", a: arguments }; return scale; }; scale.rangeBand = function() { return rangeBand; }; scale.rangeExtent = function() { return d3_scaleExtent(ranger.a[0]); }; scale.copy = function() { return d3_scale_ordinal(domain, ranger); }; return scale.domain(domain); } d3.scale.category10 = function() { return d3.scale.ordinal().range(d3_category10); }; d3.scale.category20 = function() { return d3.scale.ordinal().range(d3_category20); }; d3.scale.category20b = function() { return d3.scale.ordinal().range(d3_category20b); }; d3.scale.category20c = function() { return d3.scale.ordinal().range(d3_category20c); }; var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString); var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString); var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString); var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString); d3.scale.quantile = function() { return d3_scale_quantile([], []); }; function d3_scale_quantile(domain, range) { var thresholds; function rescale() { var k = 0, q = range.length; thresholds = []; while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q); return scale; } function scale(x) { if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)]; } scale.domain = function(x) { if (!arguments.length) return domain; domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending); return rescale(); }; scale.range = function(x) { if (!arguments.length) return range; range = x; return rescale(); }; scale.quantiles = function() { return thresholds; }; scale.invertExtent = function(y) { y = range.indexOf(y); return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ]; }; scale.copy = function() { return d3_scale_quantile(domain, range); }; return rescale(); } d3.scale.quantize = function() { return d3_scale_quantize(0, 1, [ 0, 1 ]); }; function d3_scale_quantize(x0, x1, range) { var kx, i; function scale(x) { return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))]; } function rescale() { kx = range.length / (x1 - x0); i = range.length - 1; return scale; } scale.domain = function(x) { if (!arguments.length) return [ x0, x1 ]; x0 = +x[0]; x1 = +x[x.length - 1]; return rescale(); }; scale.range = function(x) { if (!arguments.length) return range; range = x; return rescale(); }; scale.invertExtent = function(y) { y = range.indexOf(y); y = y < 0 ? NaN : y / kx + x0; return [ y, y + 1 / kx ]; }; scale.copy = function() { return d3_scale_quantize(x0, x1, range); }; return rescale(); } d3.scale.threshold = function() { return d3_scale_threshold([ .5 ], [ 0, 1 ]); }; function d3_scale_threshold(domain, range) { function scale(x) { if (x <= x) return range[d3.bisect(domain, x)]; } scale.domain = function(_) { if (!arguments.length) return domain; domain = _; return scale; }; scale.range = function(_) { if (!arguments.length) return range; range = _; return scale; }; scale.invertExtent = function(y) { y = range.indexOf(y); return [ domain[y - 1], domain[y] ]; }; scale.copy = function() { return d3_scale_threshold(domain, range); }; return scale; } d3.scale.identity = function() { return d3_scale_identity([ 0, 1 ]); }; function d3_scale_identity(domain) { function identity(x) { return +x; } identity.invert = identity; identity.domain = identity.range = function(x) { if (!arguments.length) return domain; domain = x.map(identity); return identity; }; identity.ticks = function(m) { return d3_scale_linearTicks(domain, m); }; identity.tickFormat = function(m, format) { return d3_scale_linearTickFormat(domain, m, format); }; identity.copy = function() { return d3_scale_identity(domain); }; return identity; } d3.svg = {}; function d3_zero() { return 0; } d3.svg.arc = function() { var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle; function arc() { var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1; if (r1 < r0) rc = r1, r1 = r0, r0 = rc; if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : "") + "Z"; var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = []; if (ap = (+padAngle.apply(this, arguments) || 0) / 2) { rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments); if (!cw) p1 *= -1; if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap)); if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap)); } if (r1) { x0 = r1 * Math.cos(a0 + p1); y0 = r1 * Math.sin(a0 + p1); x1 = r1 * Math.cos(a1 - p1); y1 = r1 * Math.sin(a1 - p1); var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1; if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) { var h1 = (a0 + a1) / 2; x0 = r1 * Math.cos(h1); y0 = r1 * Math.sin(h1); x1 = y1 = null; } } else { x0 = y0 = 0; } if (r0) { x2 = r0 * Math.cos(a1 - p0); y2 = r0 * Math.sin(a1 - p0); x3 = r0 * Math.cos(a0 + p0); y3 = r0 * Math.sin(a0 + p0); var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1; if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) { var h0 = (a0 + a1) / 2; x2 = r0 * Math.cos(h0); y2 = r0 * Math.sin(h0); x3 = y3 = null; } } else { x2 = y2 = 0; } if (da > ε && (rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) { cr = r0 < r1 ^ cw ? 0 : 1; var rc1 = rc, rc0 = rc; if (da < π) { var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]); rc0 = Math.min(rc, (r0 - lc) / (kc - 1)); rc1 = Math.min(rc, (r1 - lc) / (kc + 1)); } if (x1 != null) { var t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw); if (rc === rc1) { path.push("M", t30[0], "A", rc1, ",", rc1, " 0 0,", cr, " ", t30[1], "A", r1, ",", r1, " 0 ", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), ",", cw, " ", t12[1], "A", rc1, ",", rc1, " 0 0,", cr, " ", t12[0]); } else { path.push("M", t30[0], "A", rc1, ",", rc1, " 0 1,", cr, " ", t12[0]); } } else { path.push("M", x0, ",", y0); } if (x3 != null) { var t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw); if (rc === rc0) { path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t21[1], "A", r0, ",", r0, " 0 ", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), ",", 1 - cw, " ", t03[1], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]); } else { path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]); } } else { path.push("L", x2, ",", y2); } } else { path.push("M", x0, ",", y0); if (x1 != null) path.push("A", r1, ",", r1, " 0 ", l1, ",", cw, " ", x1, ",", y1); path.push("L", x2, ",", y2); if (x3 != null) path.push("A", r0, ",", r0, " 0 ", l0, ",", 1 - cw, " ", x3, ",", y3); } path.push("Z"); return path.join(""); } function circleSegment(r1, cw) { return "M0," + r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + -r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + r1; } arc.innerRadius = function(v) { if (!arguments.length) return innerRadius; innerRadius = d3_functor(v); return arc; }; arc.outerRadius = function(v) { if (!arguments.length) return outerRadius; outerRadius = d3_functor(v); return arc; }; arc.cornerRadius = function(v) { if (!arguments.length) return cornerRadius; cornerRadius = d3_functor(v); return arc; }; arc.padRadius = function(v) { if (!arguments.length) return padRadius; padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v); return arc; }; arc.startAngle = function(v) { if (!arguments.length) return startAngle; startAngle = d3_functor(v); return arc; }; arc.endAngle = function(v) { if (!arguments.length) return endAngle; endAngle = d3_functor(v); return arc; }; arc.padAngle = function(v) { if (!arguments.length) return padAngle; padAngle = d3_functor(v); return arc; }; arc.centroid = function() { var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ; return [ Math.cos(a) * r, Math.sin(a) * r ]; }; return arc; }; var d3_svg_arcAuto = "auto"; function d3_svg_arcInnerRadius(d) { return d.innerRadius; } function d3_svg_arcOuterRadius(d) { return d.outerRadius; } function d3_svg_arcStartAngle(d) { return d.startAngle; } function d3_svg_arcEndAngle(d) { return d.endAngle; } function d3_svg_arcPadAngle(d) { return d && d.padAngle; } function d3_svg_arcSweep(x0, y0, x1, y1) { return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1; } function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) { var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3; if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1; return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ]; } function d3_svg_line(projection) { var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7; function line(data) { var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y); function segment() { segments.push("M", interpolate(projection(points), tension)); } while (++i < n) { if (defined.call(this, d = data[i], i)) { points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]); } else if (points.length) { segment(); points = []; } } if (points.length) segment(); return segments.length ? segments.join("") : null; } line.x = function(_) { if (!arguments.length) return x; x = _; return line; }; line.y = function(_) { if (!arguments.length) return y; y = _; return line; }; line.defined = function(_) { if (!arguments.length) return defined; defined = _; return line; }; line.interpolate = function(_) { if (!arguments.length) return interpolateKey; if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key; return line; }; line.tension = function(_) { if (!arguments.length) return tension; tension = _; return line; }; return line; } d3.svg.line = function() { return d3_svg_line(d3_identity); }; var d3_svg_lineInterpolators = d3.map({ linear: d3_svg_lineLinear, "linear-closed": d3_svg_lineLinearClosed, step: d3_svg_lineStep, "step-before": d3_svg_lineStepBefore, "step-after": d3_svg_lineStepAfter, basis: d3_svg_lineBasis, "basis-open": d3_svg_lineBasisOpen, "basis-closed": d3_svg_lineBasisClosed, bundle: d3_svg_lineBundle, cardinal: d3_svg_lineCardinal, "cardinal-open": d3_svg_lineCardinalOpen, "cardinal-closed": d3_svg_lineCardinalClosed, monotone: d3_svg_lineMonotone }); d3_svg_lineInterpolators.forEach(function(key, value) { value.key = key; value.closed = /-closed$/.test(key); }); function d3_svg_lineLinear(points) { return points.length > 1 ? points.join("L") : points + "Z"; } function d3_svg_lineLinearClosed(points) { return points.join("L") + "Z"; } function d3_svg_lineStep(points) { var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ]; while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]); if (n > 1) path.push("H", p[0]); return path.join(""); } function d3_svg_lineStepBefore(points) { var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ]; while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]); return path.join(""); } function d3_svg_lineStepAfter(points) { var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ]; while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]); return path.join(""); } function d3_svg_lineCardinalOpen(points, tension) { return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension)); } function d3_svg_lineCardinalClosed(points, tension) { return points.length < 3 ? d3_svg_lineLinearClosed(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension)); } function d3_svg_lineCardinal(points, tension) { return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension)); } function d3_svg_lineHermite(points, tangents) { if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) { return d3_svg_lineLinear(points); } var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1; if (quad) { path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1]; p0 = points[1]; pi = 2; } if (tangents.length > 1) { t = tangents[1]; p = points[pi]; pi++; path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1]; for (var i = 2; i < tangents.length; i++, pi++) { p = points[pi]; t = tangents[i]; path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1]; } } if (quad) { var lp = points[pi]; path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1]; } return path; } function d3_svg_lineCardinalTangents(points, tension) { var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length; while (++i < n) { p0 = p1; p1 = p2; p2 = points[i]; tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]); } return tangents; } function d3_svg_lineBasis(points) { if (points.length < 3) return d3_svg_lineLinear(points); var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ]; points.push(points[n - 1]); while (++i <= n) { pi = points[i]; px.shift(); px.push(pi[0]); py.shift(); py.push(pi[1]); d3_svg_lineBasisBezier(path, px, py); } points.pop(); path.push("L", pi); return path.join(""); } function d3_svg_lineBasisOpen(points) { if (points.length < 4) return d3_svg_lineLinear(points); var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ]; while (++i < 3) { pi = points[i]; px.push(pi[0]); py.push(pi[1]); } path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)); --i; while (++i < n) { pi = points[i]; px.shift(); px.push(pi[0]); py.shift(); py.push(pi[1]); d3_svg_lineBasisBezier(path, px, py); } return path.join(""); } function d3_svg_lineBasisClosed(points) { var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = []; while (++i < 4) { pi = points[i % n]; px.push(pi[0]); py.push(pi[1]); } path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ]; --i; while (++i < m) { pi = points[i % n]; px.shift(); px.push(pi[0]); py.shift(); py.push(pi[1]); d3_svg_lineBasisBezier(path, px, py); } return path.join(""); } function d3_svg_lineBundle(points, tension) { var n = points.length - 1; if (n) { var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t; while (++i <= n) { p = points[i]; t = i / n; p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx); p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy); } } return d3_svg_lineBasis(points); } function d3_svg_lineDot4(a, b) { return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; } var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ]; function d3_svg_lineBasisBezier(path, x, y) { path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y)); } function d3_svg_lineSlope(p0, p1) { return (p1[1] - p0[1]) / (p1[0] - p0[0]); } function d3_svg_lineFiniteDifferences(points) { var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1); while (++i < j) { m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2; } m[i] = d; return m; } function d3_svg_lineMonotoneTangents(points) { var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1; while (++i < j) { d = d3_svg_lineSlope(points[i], points[i + 1]); if (abs(d) < ε) { m[i] = m[i + 1] = 0; } else { a = m[i] / d; b = m[i + 1] / d; s = a * a + b * b; if (s > 9) { s = d * 3 / Math.sqrt(s); m[i] = s * a; m[i + 1] = s * b; } } } i = -1; while (++i <= j) { s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i])); tangents.push([ s || 0, m[i] * s || 0 ]); } return tangents; } function d3_svg_lineMonotone(points) { return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points)); } d3.svg.line.radial = function() { var line = d3_svg_line(d3_svg_lineRadial); line.radius = line.x, delete line.x; line.angle = line.y, delete line.y; return line; }; function d3_svg_lineRadial(points) { var point, i = -1, n = points.length, r, a; while (++i < n) { point = points[i]; r = point[0]; a = point[1] - halfπ; point[0] = r * Math.cos(a); point[1] = r * Math.sin(a); } return points; } function d3_svg_area(projection) { var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7; function area(data) { var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() { return x; } : d3_functor(x1), fy1 = y0 === y1 ? function() { return y; } : d3_functor(y1), x, y; function segment() { segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z"); } while (++i < n) { if (defined.call(this, d = data[i], i)) { points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]); points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]); } else if (points0.length) { segment(); points0 = []; points1 = []; } } if (points0.length) segment(); return segments.length ? segments.join("") : null; } area.x = function(_) { if (!arguments.length) return x1; x0 = x1 = _; return area; }; area.x0 = function(_) { if (!arguments.length) return x0; x0 = _; return area; }; area.x1 = function(_) { if (!arguments.length) return x1; x1 = _; return area; }; area.y = function(_) { if (!arguments.length) return y1; y0 = y1 = _; return area; }; area.y0 = function(_) { if (!arguments.length) return y0; y0 = _; return area; }; area.y1 = function(_) { if (!arguments.length) return y1; y1 = _; return area; }; area.defined = function(_) { if (!arguments.length) return defined; defined = _; return area; }; area.interpolate = function(_) { if (!arguments.length) return interpolateKey; if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key; interpolateReverse = interpolate.reverse || interpolate; L = interpolate.closed ? "M" : "L"; return area; }; area.tension = function(_) { if (!arguments.length) return tension; tension = _; return area; }; return area; } d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter; d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore; d3.svg.area = function() { return d3_svg_area(d3_identity); }; d3.svg.area.radial = function() { var area = d3_svg_area(d3_svg_lineRadial); area.radius = area.x, delete area.x; area.innerRadius = area.x0, delete area.x0; area.outerRadius = area.x1, delete area.x1; area.angle = area.y, delete area.y; area.startAngle = area.y0, delete area.y0; area.endAngle = area.y1, delete area.y1; return area; }; d3.svg.chord = function() { var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle; function chord(d, i) { var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i); return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z"; } function subgroup(self, f, d, i) { var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ; return { r: r, a0: a0, a1: a1, p0: [ r * Math.cos(a0), r * Math.sin(a0) ], p1: [ r * Math.cos(a1), r * Math.sin(a1) ] }; } function equals(a, b) { return a.a0 == b.a0 && a.a1 == b.a1; } function arc(r, p, a) { return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p; } function curve(r0, p0, r1, p1) { return "Q 0,0 " + p1; } chord.radius = function(v) { if (!arguments.length) return radius; radius = d3_functor(v); return chord; }; chord.source = function(v) { if (!arguments.length) return source; source = d3_functor(v); return chord; }; chord.target = function(v) { if (!arguments.length) return target; target = d3_functor(v); return chord; }; chord.startAngle = function(v) { if (!arguments.length) return startAngle; startAngle = d3_functor(v); return chord; }; chord.endAngle = function(v) { if (!arguments.length) return endAngle; endAngle = d3_functor(v); return chord; }; return chord; }; function d3_svg_chordRadius(d) { return d.radius; } d3.svg.diagonal = function() { var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection; function diagonal(d, i) { var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, { x: p0.x, y: m }, { x: p3.x, y: m }, p3 ]; p = p.map(projection); return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3]; } diagonal.source = function(x) { if (!arguments.length) return source; source = d3_functor(x); return diagonal; }; diagonal.target = function(x) { if (!arguments.length) return target; target = d3_functor(x); return diagonal; }; diagonal.projection = function(x) { if (!arguments.length) return projection; projection = x; return diagonal; }; return diagonal; }; function d3_svg_diagonalProjection(d) { return [ d.x, d.y ]; } d3.svg.diagonal.radial = function() { var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection; diagonal.projection = function(x) { return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection; }; return diagonal; }; function d3_svg_diagonalRadialProjection(projection) { return function() { var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ; return [ r * Math.cos(a), r * Math.sin(a) ]; }; } d3.svg.symbol = function() { var type = d3_svg_symbolType, size = d3_svg_symbolSize; function symbol(d, i) { return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i)); } symbol.type = function(x) { if (!arguments.length) return type; type = d3_functor(x); return symbol; }; symbol.size = function(x) { if (!arguments.length) return size; size = d3_functor(x); return symbol; }; return symbol; }; function d3_svg_symbolSize() { return 64; } function d3_svg_symbolType() { return "circle"; } function d3_svg_symbolCircle(size) { var r = Math.sqrt(size / π); return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z"; } var d3_svg_symbols = d3.map({ circle: d3_svg_symbolCircle, cross: function(size) { var r = Math.sqrt(size / 5) / 2; return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z"; }, diamond: function(size) { var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30; return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z"; }, square: function(size) { var r = Math.sqrt(size) / 2; return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z"; }, "triangle-down": function(size) { var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2; return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z"; }, "triangle-up": function(size) { var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2; return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z"; } }); d3.svg.symbolTypes = d3_svg_symbols.keys(); var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians); d3_selectionPrototype.transition = function(name) { var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || { time: Date.now(), ease: d3_ease_cubicInOut, delay: 0, duration: 250 }; for (var j = -1, m = this.length; ++j < m; ) { subgroups.push(subgroup = []); for (var group = this[j], i = -1, n = group.length; ++i < n; ) { if (node = group[i]) d3_transitionNode(node, i, ns, id, transition); subgroup.push(node); } } return d3_transition(subgroups, ns, id); }; d3_selectionPrototype.interrupt = function(name) { return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name))); }; var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace()); function d3_selection_interruptNS(ns) { return function() { var lock, activeId, active; if ((lock = this[ns]) && (active = lock[activeId = lock.active])) { active.timer.c = null; active.timer.t = NaN; if (--lock.count) delete lock[activeId]; else delete this[ns]; lock.active += .5; active.event && active.event.interrupt.call(this, this.__data__, active.index); } }; } function d3_transition(groups, ns, id) { d3_subclass(groups, d3_transitionPrototype); groups.namespace = ns; groups.id = id; return groups; } var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit; d3_transitionPrototype.call = d3_selectionPrototype.call; d3_transitionPrototype.empty = d3_selectionPrototype.empty; d3_transitionPrototype.node = d3_selectionPrototype.node; d3_transitionPrototype.size = d3_selectionPrototype.size; d3.transition = function(selection, name) { return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection); }; d3.transition.prototype = d3_transitionPrototype; d3_transitionPrototype.select = function(selector) { var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node; selector = d3_selection_selector(selector); for (var j = -1, m = this.length; ++j < m; ) { subgroups.push(subgroup = []); for (var group = this[j], i = -1, n = group.length; ++i < n; ) { if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) { if ("__data__" in node) subnode.__data__ = node.__data__; d3_transitionNode(subnode, i, ns, id, node[ns][id]); subgroup.push(subnode); } else { subgroup.push(null); } } } return d3_transition(subgroups, ns, id); }; d3_transitionPrototype.selectAll = function(selector) { var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition; selector = d3_selection_selectorAll(selector); for (var j = -1, m = this.length; ++j < m; ) { for (var group = this[j], i = -1, n = group.length; ++i < n; ) { if (node = group[i]) { transition = node[ns][id]; subnodes = selector.call(node, node.__data__, i, j); subgroups.push(subgroup = []); for (var k = -1, o = subnodes.length; ++k < o; ) { if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition); subgroup.push(subnode); } } } } return d3_transition(subgroups, ns, id); }; d3_transitionPrototype.filter = function(filter) { var subgroups = [], subgroup, group, node; if (typeof filter !== "function") filter = d3_selection_filter(filter); for (var j = 0, m = this.length; j < m; j++) { subgroups.push(subgroup = []); for (var group = this[j], i = 0, n = group.length; i < n; i++) { if ((node = group[i]) && filter.call(node, node.__data__, i, j)) { subgroup.push(node); } } } return d3_transition(subgroups, this.namespace, this.id); }; d3_transitionPrototype.tween = function(name, tween) { var id = this.id, ns = this.namespace; if (arguments.length < 2) return this.node()[ns][id].tween.get(name); return d3_selection_each(this, tween == null ? function(node) { node[ns][id].tween.remove(name); } : function(node) { node[ns][id].tween.set(name, tween); }); }; function d3_transition_tween(groups, name, value, tween) { var id = groups.id, ns = groups.namespace; return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) { node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j))); } : (value = tween(value), function(node) { node[ns][id].tween.set(name, value); })); } d3_transitionPrototype.attr = function(nameNS, value) { if (arguments.length < 2) { for (value in nameNS) this.attr(value, nameNS[value]); return this; } var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS); function attrNull() { this.removeAttribute(name); } function attrNullNS() { this.removeAttributeNS(name.space, name.local); } function attrTween(b) { return b == null ? attrNull : (b += "", function() { var a = this.getAttribute(name), i; return a !== b && (i = interpolate(a, b), function(t) { this.setAttribute(name, i(t)); }); }); } function attrTweenNS(b) { return b == null ? attrNullNS : (b += "", function() { var a = this.getAttributeNS(name.space, name.local), i; return a !== b && (i = interpolate(a, b), function(t) { this.setAttributeNS(name.space, name.local, i(t)); }); }); } return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween); }; d3_transitionPrototype.attrTween = function(nameNS, tween) { var name = d3.ns.qualify(nameNS); function attrTween(d, i) { var f = tween.call(this, d, i, this.getAttribute(name)); return f && function(t) { this.setAttribute(name, f(t)); }; } function attrTweenNS(d, i) { var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local)); return f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); }; } return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween); }; d3_transitionPrototype.style = function(name, value, priority) { var n = arguments.length; if (n < 3) { if (typeof name !== "string") { if (n < 2) value = ""; for (priority in name) this.style(priority, name[priority], value); return this; } priority = ""; } function styleNull() { this.style.removeProperty(name); } function styleString(b) { return b == null ? styleNull : (b += "", function() { var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i; return a !== b && (i = d3_interpolate(a, b), function(t) { this.style.setProperty(name, i(t), priority); }); }); } return d3_transition_tween(this, "style." + name, value, styleString); }; d3_transitionPrototype.styleTween = function(name, tween, priority) { if (arguments.length < 3) priority = ""; function styleTween(d, i) { var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name)); return f && function(t) { this.style.setProperty(name, f(t), priority); }; } return this.tween("style." + name, styleTween); }; d3_transitionPrototype.text = function(value) { return d3_transition_tween(this, "text", value, d3_transition_text); }; function d3_transition_text(b) { if (b == null) b = ""; return function() { this.textContent = b; }; } d3_transitionPrototype.remove = function() { var ns = this.namespace; return this.each("end.transition", function() { var p; if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this); }); }; d3_transitionPrototype.ease = function(value) { var id = this.id, ns = this.namespace; if (arguments.length < 1) return this.node()[ns][id].ease; if (typeof value !== "function") value = d3.ease.apply(d3, arguments); return d3_selection_each(this, function(node) { node[ns][id].ease = value; }); }; d3_transitionPrototype.delay = function(value) { var id = this.id, ns = this.namespace; if (arguments.length < 1) return this.node()[ns][id].delay; return d3_selection_each(this, typeof value === "function" ? function(node, i, j) { node[ns][id].delay = +value.call(node, node.__data__, i, j); } : (value = +value, function(node) { node[ns][id].delay = value; })); }; d3_transitionPrototype.duration = function(value) { var id = this.id, ns = this.namespace; if (arguments.length < 1) return this.node()[ns][id].duration; return d3_selection_each(this, typeof value === "function" ? function(node, i, j) { node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j)); } : (value = Math.max(1, value), function(node) { node[ns][id].duration = value; })); }; d3_transitionPrototype.each = function(type, listener) { var id = this.id, ns = this.namespace; if (arguments.length < 2) { var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId; try { d3_transitionInheritId = id; d3_selection_each(this, function(node, i, j) { d3_transitionInherit = node[ns][id]; type.call(node, node.__data__, i, j); }); } finally { d3_transitionInherit = inherit; d3_transitionInheritId = inheritId; } } else { d3_selection_each(this, function(node) { var transition = node[ns][id]; (transition.event || (transition.event = d3.dispatch("start", "end", "interrupt"))).on(type, listener); }); } return this; }; d3_transitionPrototype.transition = function() { var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition; for (var j = 0, m = this.length; j < m; j++) { subgroups.push(subgroup = []); for (var group = this[j], i = 0, n = group.length; i < n; i++) { if (node = group[i]) { transition = node[ns][id0]; d3_transitionNode(node, i, ns, id1, { time: transition.time, ease: transition.ease, delay: transition.delay + transition.duration, duration: transition.duration }); } subgroup.push(node); } } return d3_transition(subgroups, ns, id1); }; function d3_transitionNamespace(name) { return name == null ? "__transition__" : "__transition_" + name + "__"; } function d3_transitionNode(node, i, ns, id, inherit) { var lock = node[ns] || (node[ns] = { active: 0, count: 0 }), transition = lock[id], time, timer, duration, ease, tweens; function schedule(elapsed) { var delay = transition.delay; timer.t = delay + time; if (delay <= elapsed) return start(elapsed - delay); timer.c = start; } function start(elapsed) { var activeId = lock.active, active = lock[activeId]; if (active) { active.timer.c = null; active.timer.t = NaN; --lock.count; delete lock[activeId]; active.event && active.event.interrupt.call(node, node.__data__, active.index); } for (var cancelId in lock) { if (+cancelId < id) { var cancel = lock[cancelId]; cancel.timer.c = null; cancel.timer.t = NaN; --lock.count; delete lock[cancelId]; } } timer.c = tick; d3_timer(function() { if (timer.c && tick(elapsed || 1)) { timer.c = null; timer.t = NaN; } return 1; }, 0, time); lock.active = id; transition.event && transition.event.start.call(node, node.__data__, i); tweens = []; transition.tween.forEach(function(key, value) { if (value = value.call(node, node.__data__, i)) { tweens.push(value); } }); ease = transition.ease; duration = transition.duration; } function tick(elapsed) { var t = elapsed / duration, e = ease(t), n = tweens.length; while (n > 0) { tweens[--n].call(node, e); } if (t >= 1) { transition.event && transition.event.end.call(node, node.__data__, i); if (--lock.count) delete lock[id]; else delete node[ns]; return 1; } } if (!transition) { time = inherit.time; timer = d3_timer(schedule, 0, time); transition = lock[id] = { tween: new d3_Map(), time: time, timer: timer, delay: inherit.delay, duration: inherit.duration, ease: inherit.ease, index: i }; inherit = null; ++lock.count; } } d3.svg.axis = function() { var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_; function axis(g) { g.each(function() { var g = d3.select(this); var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy(); var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform; var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), d3.transition(path)); tickEnter.append("line"); tickEnter.append("text"); var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text"), sign = orient === "top" || orient === "left" ? -1 : 1, x1, x2, y1, y2; if (orient === "bottom" || orient === "top") { tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2"; text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle"); pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize); } else { tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2"; text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start"); pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize); } lineEnter.attr(y2, sign * innerTickSize); textEnter.attr(y1, sign * tickSpacing); lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize); textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing); if (scale1.rangeBand) { var x = scale1, dx = x.rangeBand() / 2; scale0 = scale1 = function(d) { return x(d) + dx; }; } else if (scale0.rangeBand) { scale0 = scale1; } else { tickExit.call(tickTransform, scale1, scale0); } tickEnter.call(tickTransform, scale0, scale1); tickUpdate.call(tickTransform, scale1, scale1); }); } axis.scale = function(x) { if (!arguments.length) return scale; scale = x; return axis; }; axis.orient = function(x) { if (!arguments.length) return orient; orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient; return axis; }; axis.ticks = function() { if (!arguments.length) return tickArguments_; tickArguments_ = d3_array(arguments); return axis; }; axis.tickValues = function(x) { if (!arguments.length) return tickValues; tickValues = x; return axis; }; axis.tickFormat = function(x) { if (!arguments.length) return tickFormat_; tickFormat_ = x; return axis; }; axis.tickSize = function(x) { var n = arguments.length; if (!n) return innerTickSize; innerTickSize = +x; outerTickSize = +arguments[n - 1]; return axis; }; axis.innerTickSize = function(x) { if (!arguments.length) return innerTickSize; innerTickSize = +x; return axis; }; axis.outerTickSize = function(x) { if (!arguments.length) return outerTickSize; outerTickSize = +x; return axis; }; axis.tickPadding = function(x) { if (!arguments.length) return tickPadding; tickPadding = +x; return axis; }; axis.tickSubdivide = function() { return arguments.length && axis; }; return axis; }; var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = { top: 1, right: 1, bottom: 1, left: 1 }; function d3_svg_axisX(selection, x0, x1) { selection.attr("transform", function(d) { var v0 = x0(d); return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)"; }); } function d3_svg_axisY(selection, y0, y1) { selection.attr("transform", function(d) { var v0 = y0(d); return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")"; }); } d3.svg.brush = function() { var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0]; function brush(g) { g.each(function() { var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart); var background = g.selectAll(".background").data([ 0 ]); background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair"); g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move"); var resize = g.selectAll(".resize").data(resizes, d3_identity); resize.exit().remove(); resize.enter().append("g").attr("class", function(d) { return "resize " + d; }).style("cursor", function(d) { return d3_svg_brushCursor[d]; }).append("rect").attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; }).attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; }).attr("width", 6).attr("height", 6).style("visibility", "hidden"); resize.style("display", brush.empty() ? "none" : null); var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range; if (x) { range = d3_scaleRange(x); backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]); redrawX(gUpdate); } if (y) { range = d3_scaleRange(y); backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]); redrawY(gUpdate); } redraw(gUpdate); }); } brush.event = function(g) { g.each(function() { var event_ = event.of(this, arguments), extent1 = { x: xExtent, y: yExtent, i: xExtentDomain, j: yExtentDomain }, extent0 = this.__chart__ || extent1; this.__chart__ = extent1; if (d3_transitionInheritId) { d3.select(this).transition().each("start.brush", function() { xExtentDomain = extent0.i; yExtentDomain = extent0.j; xExtent = extent0.x; yExtent = extent0.y; event_({ type: "brushstart" }); }).tween("brush:brush", function() { var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y); xExtentDomain = yExtentDomain = null; return function(t) { xExtent = extent1.x = xi(t); yExtent = extent1.y = yi(t); event_({ type: "brush", mode: "resize" }); }; }).each("end.brush", function() { xExtentDomain = extent1.i; yExtentDomain = extent1.j; event_({ type: "brush", mode: "resize" }); event_({ type: "brushend" }); }); } else { event_({ type: "brushstart" }); event_({ type: "brush", mode: "resize" }); event_({ type: "brushend" }); } }); }; function redraw(g) { g.selectAll(".resize").attr("transform", function(d) { return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")"; }); } function redrawX(g) { g.select(".extent").attr("x", xExtent[0]); g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]); } function redrawY(g) { g.select(".extent").attr("y", yExtent[0]); g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]); } function brushstart() { var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset; var w = d3.select(d3_window(target)).on("keydown.brush", keydown).on("keyup.brush", keyup); if (d3.event.changedTouches) { w.on("touchmove.brush", brushmove).on("touchend.brush", brushend); } else { w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend); } g.interrupt().selectAll("*").interrupt(); if (dragging) { origin[0] = xExtent[0] - origin[0]; origin[1] = yExtent[0] - origin[1]; } else if (resizing) { var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing); offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ]; origin[0] = xExtent[ex]; origin[1] = yExtent[ey]; } else if (d3.event.altKey) center = origin.slice(); g.style("pointer-events", "none").selectAll(".resize").style("display", null); d3.select("body").style("cursor", eventTarget.style("cursor")); event_({ type: "brushstart" }); brushmove(); function keydown() { if (d3.event.keyCode == 32) { if (!dragging) { center = null; origin[0] -= xExtent[1]; origin[1] -= yExtent[1]; dragging = 2; } d3_eventPreventDefault(); } } function keyup() { if (d3.event.keyCode == 32 && dragging == 2) { origin[0] += xExtent[1]; origin[1] += yExtent[1]; dragging = 0; d3_eventPreventDefault(); } } function brushmove() { var point = d3.mouse(target), moved = false; if (offset) { point[0] += offset[0]; point[1] += offset[1]; } if (!dragging) { if (d3.event.altKey) { if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ]; origin[0] = xExtent[+(point[0] < center[0])]; origin[1] = yExtent[+(point[1] < center[1])]; } else center = null; } if (resizingX && move1(point, x, 0)) { redrawX(g); moved = true; } if (resizingY && move1(point, y, 1)) { redrawY(g); moved = true; } if (moved) { redraw(g); event_({ type: "brush", mode: dragging ? "move" : "resize" }); } } function move1(point, scale, i) { var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max; if (dragging) { r0 -= position; r1 -= size + position; } min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i]; if (dragging) { max = (min += position) + size; } else { if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min)); if (position < min) { max = min; min = position; } else { max = position; } } if (extent[0] != min || extent[1] != max) { if (i) yExtentDomain = null; else xExtentDomain = null; extent[0] = min; extent[1] = max; return true; } } function brushend() { brushmove(); g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null); d3.select("body").style("cursor", null); w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null); dragRestore(); event_({ type: "brushend" }); } } brush.x = function(z) { if (!arguments.length) return x; x = z; resizes = d3_svg_brushResizes[!x << 1 | !y]; return brush; }; brush.y = function(z) { if (!arguments.length) return y; y = z; resizes = d3_svg_brushResizes[!x << 1 | !y]; return brush; }; brush.clamp = function(z) { if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null; if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z; return brush; }; brush.extent = function(z) { var x0, x1, y0, y1, t; if (!arguments.length) { if (x) { if (xExtentDomain) { x0 = xExtentDomain[0], x1 = xExtentDomain[1]; } else { x0 = xExtent[0], x1 = xExtent[1]; if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1); if (x1 < x0) t = x0, x0 = x1, x1 = t; } } if (y) { if (yExtentDomain) { y0 = yExtentDomain[0], y1 = yExtentDomain[1]; } else { y0 = yExtent[0], y1 = yExtent[1]; if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1); if (y1 < y0) t = y0, y0 = y1, y1 = t; } } return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ]; } if (x) { x0 = z[0], x1 = z[1]; if (y) x0 = x0[0], x1 = x1[0]; xExtentDomain = [ x0, x1 ]; if (x.invert) x0 = x(x0), x1 = x(x1); if (x1 < x0) t = x0, x0 = x1, x1 = t; if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ]; } if (y) { y0 = z[0], y1 = z[1]; if (x) y0 = y0[1], y1 = y1[1]; yExtentDomain = [ y0, y1 ]; if (y.invert) y0 = y(y0), y1 = y(y1); if (y1 < y0) t = y0, y0 = y1, y1 = t; if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ]; } return brush; }; brush.clear = function() { if (!brush.empty()) { xExtent = [ 0, 0 ], yExtent = [ 0, 0 ]; xExtentDomain = yExtentDomain = null; } return brush; }; brush.empty = function() { return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1]; }; return d3.rebind(brush, event, "on"); }; var d3_svg_brushCursor = { n: "ns-resize", e: "ew-resize", s: "ns-resize", w: "ew-resize", nw: "nwse-resize", ne: "nesw-resize", se: "nwse-resize", sw: "nesw-resize" }; var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ]; var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat; var d3_time_formatUtc = d3_time_format.utc; var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ"); d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso; function d3_time_formatIsoNative(date) { return date.toISOString(); } d3_time_formatIsoNative.parse = function(string) { var date = new Date(string); return isNaN(date) ? null : date; }; d3_time_formatIsoNative.toString = d3_time_formatIso.toString; d3_time.second = d3_time_interval(function(date) { return new d3_date(Math.floor(date / 1e3) * 1e3); }, function(date, offset) { date.setTime(date.getTime() + Math.floor(offset) * 1e3); }, function(date) { return date.getSeconds(); }); d3_time.seconds = d3_time.second.range; d3_time.seconds.utc = d3_time.second.utc.range; d3_time.minute = d3_time_interval(function(date) { return new d3_date(Math.floor(date / 6e4) * 6e4); }, function(date, offset) { date.setTime(date.getTime() + Math.floor(offset) * 6e4); }, function(date) { return date.getMinutes(); }); d3_time.minutes = d3_time.minute.range; d3_time.minutes.utc = d3_time.minute.utc.range; d3_time.hour = d3_time_interval(function(date) { var timezone = date.getTimezoneOffset() / 60; return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5); }, function(date, offset) { date.setTime(date.getTime() + Math.floor(offset) * 36e5); }, function(date) { return date.getHours(); }); d3_time.hours = d3_time.hour.range; d3_time.hours.utc = d3_time.hour.utc.range; d3_time.month = d3_time_interval(function(date) { date = d3_time.day(date); date.setDate(1); return date; }, function(date, offset) { date.setMonth(date.getMonth() + offset); }, function(date) { return date.getMonth(); }); d3_time.months = d3_time.month.range; d3_time.months.utc = d3_time.month.utc.range; function d3_time_scale(linear, methods, format) { function scale(x) { return linear(x); } scale.invert = function(x) { return d3_time_scaleDate(linear.invert(x)); }; scale.domain = function(x) { if (!arguments.length) return linear.domain().map(d3_time_scaleDate); linear.domain(x); return scale; }; function tickMethod(extent, count) { var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target); return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) { return d / 31536e6; }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i]; } scale.nice = function(interval, skip) { var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval); if (method) interval = method[0], skip = method[1]; function skipped(date) { return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length; } return scale.domain(d3_scale_nice(domain, skip > 1 ? { floor: function(date) { while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1); return date; }, ceil: function(date) { while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1); return date; } } : interval)); }; scale.ticks = function(interval, skip) { var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ { range: interval }, skip ]; if (method) interval = method[0], skip = method[1]; return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip); }; scale.tickFormat = function() { return format; }; scale.copy = function() { return d3_time_scale(linear.copy(), methods, format); }; return d3_scale_linearRebind(scale, linear); } function d3_time_scaleDate(t) { return new Date(t); } var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ]; var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ]; var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) { return d.getMilliseconds(); } ], [ ":%S", function(d) { return d.getSeconds(); } ], [ "%I:%M", function(d) { return d.getMinutes(); } ], [ "%I %p", function(d) { return d.getHours(); } ], [ "%a %d", function(d) { return d.getDay() && d.getDate() != 1; } ], [ "%b %d", function(d) { return d.getDate() != 1; } ], [ "%B", function(d) { return d.getMonth(); } ], [ "%Y", d3_true ] ]); var d3_time_scaleMilliseconds = { range: function(start, stop, step) { return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate); }, floor: d3_identity, ceil: d3_identity }; d3_time_scaleLocalMethods.year = d3_time.year; d3_time.scale = function() { return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat); }; var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) { return [ m[0].utc, m[1] ]; }); var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) { return d.getUTCMilliseconds(); } ], [ ":%S", function(d) { return d.getUTCSeconds(); } ], [ "%I:%M", function(d) { return d.getUTCMinutes(); } ], [ "%I %p", function(d) { return d.getUTCHours(); } ], [ "%a %d", function(d) { return d.getUTCDay() && d.getUTCDate() != 1; } ], [ "%b %d", function(d) { return d.getUTCDate() != 1; } ], [ "%B", function(d) { return d.getUTCMonth(); } ], [ "%Y", d3_true ] ]); d3_time_scaleUtcMethods.year = d3_time.year.utc; d3_time.scale.utc = function() { return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat); }; d3.text = d3_xhrType(function(request) { return request.responseText; }); d3.json = function(url, callback) { return d3_xhr(url, "application/json", d3_json, callback); }; function d3_json(request) { return JSON.parse(request.responseText); } d3.html = function(url, callback) { return d3_xhr(url, "text/html", d3_html, callback); }; function d3_html(request) { var range = d3_document.createRange(); range.selectNode(d3_document.body); return range.createContextualFragment(request.responseText); } d3.xml = d3_xhrType(function(request) { return request.responseXML; }); if (true) this.d3 = d3, !(__WEBPACK_AMD_DEFINE_FACTORY__ = (d3), __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? (__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) : __WEBPACK_AMD_DEFINE_FACTORY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)); else if (typeof module === "object" && module.exports) module.exports = d3; else this.d3 = d3; }(); /***/ }), /* 3 */ /***/ (function(module, exports, __webpack_require__) { 'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var _d = __webpack_require__(2); var _d2 = _interopRequireDefault(_d); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var Barchart = // svg: d3 object with the svg in question // exp_array: list of (feature_name, weight) function Barchart(svg, exp_array) { var two_sided = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true; var titles = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : undefined; var colors = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : ['red', 'green']; var show_numbers = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false; var bar_height = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : 5; _classCallCheck(this, Barchart); var svg_width = Math.min(600, parseInt(svg.style('width'))); var bar_width = two_sided ? svg_width / 2 : svg_width; if (titles === undefined) { titles = two_sided ? ['Cons', 'Pros'] : 'Pros'; } if (show_numbers) { bar_width = bar_width - 30; } var x_offset = two_sided ? svg_width / 2 : 10; // 13.1 is +- the width of W, the widest letter. if (two_sided && titles.length == 2) { svg.append('text').attr('x', svg_width / 4).attr('y', 15).attr('font-size', '20').attr('text-anchor', 'middle').style('fill', colors[0]).text(titles[0]); svg.append('text').attr('x', svg_width / 4 * 3).attr('y', 15).attr('font-size', '20').attr('text-anchor', 'middle').style('fill', colors[1]).text(titles[1]); } else { var pos = two_sided ? svg_width / 2 : x_offset; var anchor = two_sided ? 'middle' : 'begin'; svg.append('text').attr('x', pos).attr('y', 15).attr('font-size', '20').attr('text-anchor', anchor).text(titles); } var yshift = 20; var space_between_bars = 0; var text_height = 16; var space_between_bar_and_text = 3; var total_bar_height = text_height + space_between_bar_and_text + bar_height + space_between_bars; var total_height = total_bar_height * exp_array.length; this.svg_height = total_height + yshift; var yscale = _d2.default.scale.linear().domain([0, exp_array.length]).range([yshift, yshift + total_height]); var names = exp_array.map(function (v) { return v[0]; }); var weights = exp_array.map(function (v) { return v[1]; }); var max_weight = Math.max.apply(Math, _toConsumableArray(weights.map(function (v) { return Math.abs(v); }))); var xscale = _d2.default.scale.linear().domain([0, Math.max(1, max_weight)]).range([0, bar_width]); for (var i = 0; i < exp_array.length; ++i) { var name = names[i]; var weight = weights[i]; var size = xscale(Math.abs(weight)); var to_the_right = weight > 0 || !two_sided; var text = svg.append('text').attr('x', to_the_right ? x_offset + 2 : x_offset - 2).attr('y', yscale(i) + text_height).attr('text-anchor', to_the_right ? 'begin' : 'end').attr('font-size', '14').text(name); while (text.node().getBBox()['width'] + 1 > bar_width) { var cur_text = text.text().slice(0, text.text().length - 5); text.text(cur_text + '...'); if (text === '...') { break; } } var bar = svg.append('rect').attr('height', bar_height).attr('x', to_the_right ? x_offset : x_offset - size).attr('y', text_height + yscale(i) + space_between_bar_and_text) // + bar_height) .attr('width', size).style('fill', weight > 0 ? colors[1] : colors[0]); if (show_numbers) { var bartext = svg.append('text').attr('x', to_the_right ? x_offset + size + 1 : x_offset - size - 1).attr('text-anchor', weight > 0 || !two_sided ? 'begin' : 'end').attr('y', bar_height + yscale(i) + text_height + space_between_bar_and_text).attr('font-size', '10').text(Math.abs(weight).toFixed(2)); } } var line = svg.append("line").attr("x1", x_offset).attr("x2", x_offset).attr("y1", bar_height + yshift).attr("y2", Math.max(bar_height, yscale(exp_array.length))).style("stroke-width", 2).style("stroke", "black"); }; exports.default = Barchart; /***/ }), /* 4 */ /***/ (function(module, exports, __webpack_require__) { var __WEBPACK_AMD_DEFINE_RESULT__;/* WEBPACK VAR INJECTION */(function(global, module) {/** * @license * Lodash * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors */ ;(function() { /** Used as a safe reference for `undefined` in pre-ES5 environments. */ var undefined; /** Used as the semantic version number. */ var VERSION = '4.17.11'; /** Used as the size to enable large array optimizations. */ var LARGE_ARRAY_SIZE = 200; /** Error message constants. */ var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.', FUNC_ERROR_TEXT = 'Expected a function'; /** Used to stand-in for `undefined` hash values. */ var HASH_UNDEFINED = '__lodash_hash_undefined__'; /** Used as the maximum memoize cache size. */ var MAX_MEMOIZE_SIZE = 500; /** Used as the internal argument placeholder. */ var PLACEHOLDER = '__lodash_placeholder__'; /** Used to compose bitmasks for cloning. */ var CLONE_DEEP_FLAG = 1, CLONE_FLAT_FLAG = 2, CLONE_SYMBOLS_FLAG = 4; /** Used to compose bitmasks for value comparisons. */ var COMPARE_PARTIAL_FLAG = 1, COMPARE_UNORDERED_FLAG = 2; /** Used to compose bitmasks for function metadata. */ var WRAP_BIND_FLAG = 1, WRAP_BIND_KEY_FLAG = 2, WRAP_CURRY_BOUND_FLAG = 4, WRAP_CURRY_FLAG = 8, WRAP_CURRY_RIGHT_FLAG = 16, WRAP_PARTIAL_FLAG = 32, WRAP_PARTIAL_RIGHT_FLAG = 64, WRAP_ARY_FLAG = 128, WRAP_REARG_FLAG = 256, WRAP_FLIP_FLAG = 512; /** Used as default options for `_.truncate`. */ var DEFAULT_TRUNC_LENGTH = 30, DEFAULT_TRUNC_OMISSION = '...'; /** Used to detect hot functions by number of calls within a span of milliseconds. */ var HOT_COUNT = 800, HOT_SPAN = 16; /** Used to indicate the type of lazy iteratees. */ var LAZY_FILTER_FLAG = 1, LAZY_MAP_FLAG = 2, LAZY_WHILE_FLAG = 3; /** Used as references for various `Number` constants. */ var INFINITY = 1 / 0, MAX_SAFE_INTEGER = 9007199254740991, MAX_INTEGER = 1.7976931348623157e+308, NAN = 0 / 0; /** Used as references for the maximum length and index of an array. */ var MAX_ARRAY_LENGTH = 4294967295, MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; /** Used to associate wrap methods with their bit flags. */ var wrapFlags = [ ['ary', WRAP_ARY_FLAG], ['bind', WRAP_BIND_FLAG], ['bindKey', WRAP_BIND_KEY_FLAG], ['curry', WRAP_CURRY_FLAG], ['curryRight', WRAP_CURRY_RIGHT_FLAG], ['flip', WRAP_FLIP_FLAG], ['partial', WRAP_PARTIAL_FLAG], ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], ['rearg', WRAP_REARG_FLAG] ]; /** `Object#toString` result references. */ var argsTag = '[object Arguments]', arrayTag = '[object Array]', asyncTag = '[object AsyncFunction]', boolTag = '[object Boolean]', dateTag = '[object Date]', domExcTag = '[object DOMException]', errorTag = '[object Error]', funcTag = '[object Function]', genTag = '[object GeneratorFunction]', mapTag = '[object Map]', numberTag = '[object Number]', nullTag = '[object Null]', objectTag = '[object Object]', promiseTag = '[object Promise]', proxyTag = '[object Proxy]', regexpTag = '[object RegExp]', setTag = '[object Set]', stringTag = '[object String]', symbolTag = '[object Symbol]', undefinedTag = '[object Undefined]', weakMapTag = '[object WeakMap]', weakSetTag = '[object WeakSet]'; var arrayBufferTag = '[object ArrayBuffer]', dataViewTag = '[object DataView]', float32Tag = '[object Float32Array]', float64Tag = '[object Float64Array]', int8Tag = '[object Int8Array]', int16Tag = '[object Int16Array]', int32Tag = '[object Int32Array]', uint8Tag = '[object Uint8Array]', uint8ClampedTag = '[object Uint8ClampedArray]', uint16Tag = '[object Uint16Array]', uint32Tag = '[object Uint32Array]'; /** Used to match empty string literals in compiled template source. */ var reEmptyStringLeading = /\b__p \+= '';/g, reEmptyStringMiddle = /\b(__p \+=) '' \+/g, reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; /** Used to match HTML entities and HTML characters. */ var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, reUnescapedHtml = /[&<>"']/g, reHasEscapedHtml = RegExp(reEscapedHtml.source), reHasUnescapedHtml = RegExp(reUnescapedHtml.source); /** Used to match template delimiters. */ var reEscape = /<%-([\s\S]+?)%>/g, reEvaluate = /<%([\s\S]+?)%>/g, reInterpolate = /<%=([\s\S]+?)%>/g; /** Used to match property names within property paths. */ var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, reIsPlainProp = /^\w*$/, rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; /** * Used to match `RegExp` * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). */ var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, reHasRegExpChar = RegExp(reRegExpChar.source); /** Used to match leading and trailing whitespace. */ var reTrim = /^\s+|\s+$/g, reTrimStart = /^\s+/, reTrimEnd = /\s+$/; /** Used to match wrap detail comments. */ var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, reSplitDetails = /,? & /; /** Used to match words composed of alphanumeric characters. */ var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; /** Used to match backslashes in property paths. */ var reEscapeChar = /\\(\\)?/g; /** * Used to match * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). */ var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; /** Used to match `RegExp` flags from their coerced string values. */ var reFlags = /\w*$/; /** Used to detect bad signed hexadecimal string values. */ var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; /** Used to detect binary string values. */ var reIsBinary = /^0b[01]+$/i; /** Used to detect host constructors (Safari). */ var reIsHostCtor = /^\[object .+?Constructor\]$/; /** Used to detect octal string values. */ var reIsOctal = /^0o[0-7]+$/i; /** Used to detect unsigned integer values. */ var reIsUint = /^(?:0|[1-9]\d*)$/; /** Used to match Latin Unicode letters (excluding mathematical operators). */ var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; /** Used to ensure capturing order of template delimiters. */ var reNoMatch = /($^)/; /** Used to match unescaped characters in compiled string literals. */ var reUnescapedString = /['\n\r\u2028\u2029\\]/g; /** Used to compose unicode character classes. */ var rsAstralRange = '\\ud800-\\udfff', rsComboMarksRange = '\\u0300-\\u036f', reComboHalfMarksRange = '\\ufe20-\\ufe2f', rsComboSymbolsRange = '\\u20d0-\\u20ff', rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, rsDingbatRange = '\\u2700-\\u27bf', rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', rsPunctuationRange = '\\u2000-\\u206f', rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', rsVarRange = '\\ufe0e\\ufe0f', rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; /** Used to compose unicode capture groups. */ var rsApos = "['\u2019]", rsAstral = '[' + rsAstralRange + ']', rsBreak = '[' + rsBreakRange + ']', rsCombo = '[' + rsComboRange + ']', rsDigits = '\\d+', rsDingbat = '[' + rsDingbatRange + ']', rsLower = '[' + rsLowerRange + ']', rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', rsFitz = '\\ud83c[\\udffb-\\udfff]', rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', rsNonAstral = '[^' + rsAstralRange + ']', rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', rsUpper = '[' + rsUpperRange + ']', rsZWJ = '\\u200d'; /** Used to compose unicode regexes. */ var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', reOptMod = rsModifier + '?', rsOptVar = '[' + rsVarRange + ']?', rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])', rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])', rsSeq = rsOptVar + reOptMod + rsOptJoin, rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; /** Used to match apostrophes. */ var reApos = RegExp(rsApos, 'g'); /** * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). */ var reComboMark = RegExp(rsCombo, 'g'); /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); /** Used to match complex or compound words. */ var reUnicodeWord = RegExp([ rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, rsUpper + '+' + rsOptContrUpper, rsOrdUpper, rsOrdLower, rsDigits, rsEmoji ].join('|'), 'g'); /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); /** Used to detect strings that need a more robust regexp to match words. */ var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; /** Used to assign default `context` object properties. */ var contextProps = [ 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' ]; /** Used to make template sourceURLs easier to identify. */ var templateCounter = -1; /** Used to identify `toStringTag` values of typed arrays. */ var typedArrayTags = {}; typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = typedArrayTags[uint32Tag] = true; typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; /** Used to identify `toStringTag` values supported by `_.clone`. */ var cloneableTags = {}; cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[dateTag] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[int8Tag] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[mapTag] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[regexpTag] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[symbolTag] = cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[weakMapTag] = false; /** Used to map Latin Unicode letters to basic Latin letters. */ var deburredLetters = { // Latin-1 Supplement block. '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', '\xc7': 'C', '\xe7': 'c', '\xd0': 'D', '\xf0': 'd', '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', '\xd1': 'N', '\xf1': 'n', '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', '\xc6': 'Ae', '\xe6': 'ae', '\xde': 'Th', '\xfe': 'th', '\xdf': 'ss', // Latin Extended-A block. '\u0100': 'A', '\u0102': 'A', '\u0104': 'A', '\u0101': 'a', '\u0103': 'a', '\u0105': 'a', '\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', '\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', '\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', '\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', '\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', '\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', '\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', '\u0134': 'J', '\u0135': 'j', '\u0136': 'K', '\u0137': 'k', '\u0138': 'k', '\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', '\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', '\u014c': 'O', '\u014e': 'O', '\u0150': 'O', '\u014d': 'o', '\u014f': 'o', '\u0151': 'o', '\u0154': 'R', '\u0156': 'R', '\u0158': 'R', '\u0155': 'r', '\u0157': 'r', '\u0159': 'r', '\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', '\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', '\u0162': 'T', '\u0164': 'T', '\u0166': 'T', '\u0163': 't', '\u0165': 't', '\u0167': 't', '\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', '\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', '\u0174': 'W', '\u0175': 'w', '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', '\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', '\u017a': 'z', '\u017c': 'z', '\u017e': 'z', '\u0132': 'IJ', '\u0133': 'ij', '\u0152': 'Oe', '\u0153': 'oe', '\u0149': "'n", '\u017f': 's' }; /** Used to map characters to HTML entities. */ var htmlEscapes = { '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' }; /** Used to map HTML entities to characters. */ var htmlUnescapes = { '&': '&', '<': '<', '>': '>', '"': '"', ''': "'" }; /** Used to escape characters for inclusion in compiled string literals. */ var stringEscapes = { '\\': '\\', "'": "'", '\n': 'n', '\r': 'r', '\u2028': 'u2028', '\u2029': 'u2029' }; /** Built-in method references without a dependency on `root`. */ var freeParseFloat = parseFloat, freeParseInt = parseInt; /** Detect free variable `global` from Node.js. */ var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; /** Detect free variable `self`. */ var freeSelf = typeof self == 'object' && self && self.Object === Object && self; /** Used as a reference to the global object. */ var root = freeGlobal || freeSelf || Function('return this')(); /** Detect free variable `exports`. */ var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; /** Detect free variable `module`. */ var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; /** Detect the popular CommonJS extension `module.exports`. */ var moduleExports = freeModule && freeModule.exports === freeExports; /** Detect free variable `process` from Node.js. */ var freeProcess = moduleExports && freeGlobal.process; /** Used to access faster Node.js helpers. */ var nodeUtil = (function() { try { // Use `util.types` for Node.js 10+. var types = freeModule && freeModule.require && freeModule.require('util').types; if (types) { return types; } // Legacy `process.binding('util')` for Node.js < 10. return freeProcess && freeProcess.binding && freeProcess.binding('util'); } catch (e) {} }()); /* Node.js helper references. */ var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, nodeIsDate = nodeUtil && nodeUtil.isDate, nodeIsMap = nodeUtil && nodeUtil.isMap, nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, nodeIsSet = nodeUtil && nodeUtil.isSet, nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; /*--------------------------------------------------------------------------*/ /** * A faster alternative to `Function#apply`, this function invokes `func` * with the `this` binding of `thisArg` and the arguments of `args`. * * @private * @param {Function} func The function to invoke. * @param {*} thisArg The `this` binding of `func`. * @param {Array} args The arguments to invoke `func` with. * @returns {*} Returns the result of `func`. */ function apply(func, thisArg, args) { switch (args.length) { case 0: return func.call(thisArg); case 1: return func.call(thisArg, args[0]); case 2: return func.call(thisArg, args[0], args[1]); case 3: return func.call(thisArg, args[0], args[1], args[2]); } return func.apply(thisArg, args); } /** * A specialized version of `baseAggregator` for arrays. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} setter The function to set `accumulator` values. * @param {Function} iteratee The iteratee to transform keys. * @param {Object} accumulator The initial aggregated object. * @returns {Function} Returns `accumulator`. */ function arrayAggregator(array, setter, iteratee, accumulator) { var index = -1, length = array == null ? 0 : array.length; while (++index < length) { var value = array[index]; setter(accumulator, value, iteratee(value), array); } return accumulator; } /** * A specialized version of `_.forEach` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array} Returns `array`. */ function arrayEach(array, iteratee) { var index = -1, length = array == null ? 0 : array.length; while (++index < length) { if (iteratee(array[index], index, array) === false) { break; } } return array; } /** * A specialized version of `_.forEachRight` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array} Returns `array`. */ function arrayEachRight(array, iteratee) { var length = array == null ? 0 : array.length; while (length--) { if (iteratee(array[length], length, array) === false) { break; } } return array; } /** * A specialized version of `_.every` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {boolean} Returns `true` if all elements pass the predicate check, * else `false`. */ function arrayEvery(array, predicate) { var index = -1, length = array == null ? 0 : array.length; while (++index < length) { if (!predicate(array[index], index, array)) { return false; } } return true; } /** * A specialized version of `_.filter` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {Array} Returns the new filtered array. */ function arrayFilter(array, predicate) { var index = -1, length = array == null ? 0 : array.length, resIndex = 0, result = []; while (++index < length) { var value = array[index]; if (predicate(value, index, array)) { result[resIndex++] = value; } } return result; } /** * A specialized version of `_.includes` for arrays without support for * specifying an index to search from. * * @private * @param {Array} [array] The array to inspect. * @param {*} target The value to search for. * @returns {boolean} Returns `true` if `target` is found, else `false`. */ function arrayIncludes(array, value) { var length = array == null ? 0 : array.length; return !!length && baseIndexOf(array, value, 0) > -1; } /** * This function is like `arrayIncludes` except that it accepts a comparator. * * @private * @param {Array} [array] The array to inspect. * @param {*} target The value to search for. * @param {Function} comparator The comparator invoked per element. * @returns {boolean} Returns `true` if `target` is found, else `false`. */ function arrayIncludesWith(array, value, comparator) { var index = -1, length = array == null ? 0 : array.length; while (++index < length) { if (comparator(value, array[index])) { return true; } } return false; } /** * A specialized version of `_.map` for arrays without support for iteratee * shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array} Returns the new mapped array. */ function arrayMap(array, iteratee) { var index = -1, length = array == null ? 0 : array.length, result = Array(length); while (++index < length) { result[index] = iteratee(array[index], index, array); } return result; } /** * Appends the elements of `values` to `array`. * * @private * @param {Array} array The array to modify. * @param {Array} values The values to append. * @returns {Array} Returns `array`. */ function arrayPush(array, values) { var index = -1, length = values.length, offset = array.length; while (++index < length) { array[offset + index] = values[index]; } return array; } /** * A specialized version of `_.reduce` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @param {*} [accumulator] The initial value. * @param {boolean} [initAccum] Specify using the first element of `array` as * the initial value. * @returns {*} Returns the accumulated value. */ function arrayReduce(array, iteratee, accumulator, initAccum) { var index = -1, length = array == null ? 0 : array.length; if (initAccum && length) { accumulator = array[++index]; } while (++index < length) { accumulator = iteratee(accumulator, array[index], index, array); } return accumulator; } /** * A specialized version of `_.reduceRight` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @param {*} [accumulator] The initial value. * @param {boolean} [initAccum] Specify using the last element of `array` as * the initial value. * @returns {*} Returns the accumulated value. */ function arrayReduceRight(array, iteratee, accumulator, initAccum) { var length = array == null ? 0 : array.length; if (initAccum && length) { accumulator = array[--length]; } while (length--) { accumulator = iteratee(accumulator, array[length], length, array); } return accumulator; } /** * A specialized version of `_.some` for arrays without support for iteratee * shorthands. * * @private * @param {Array} [array] The array to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {boolean} Returns `true` if any element passes the predicate check, * else `false`. */ function arraySome(array, predicate) { var index = -1, length = array == null ? 0 : array.length; while (++index < length) { if (predicate(array[index], index, array)) { return true; } } return false; } /** * Gets the size of an ASCII `string`. * * @private * @param {string} string The string inspect. * @returns {number} Returns the string size. */ var asciiSize = baseProperty('length'); /** * Converts an ASCII `string` to an array. * * @private * @param {string} string The string to convert. * @returns {Array} Returns the converted array. */ function asciiToArray(string) { return string.split(''); } /** * Splits an ASCII `string` into an array of its words. * * @private * @param {string} The string to inspect. * @returns {Array} Returns the words of `string`. */ function asciiWords(string) { return string.match(reAsciiWord) || []; } /** * The base implementation of methods like `_.findKey` and `_.findLastKey`, * without support for iteratee shorthands, which iterates over `collection` * using `eachFunc`. * * @private * @param {Array|Object} collection The collection to inspect. * @param {Function} predicate The function invoked per iteration. * @param {Function} eachFunc The function to iterate over `collection`. * @returns {*} Returns the found element or its key, else `undefined`. */ function baseFindKey(collection, predicate, eachFunc) { var result; eachFunc(collection, function(value, key, collection) { if (predicate(value, key, collection)) { result = key; return false; } }); return result; } /** * The base implementation of `_.findIndex` and `_.findLastIndex` without * support for iteratee shorthands. * * @private * @param {Array} array The array to inspect. * @param {Function} predicate The function invoked per iteration. * @param {number} fromIndex The index to search from. * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {number} Returns the index of the matched value, else `-1`. */ function baseFindIndex(array, predicate, fromIndex, fromRight) { var length = array.length, index = fromIndex + (fromRight ? 1 : -1); while ((fromRight ? index-- : ++index < length)) { if (predicate(array[index], index, array)) { return index; } } return -1; } /** * The base implementation of `_.indexOf` without `fromIndex` bounds checks. * * @private * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. */ function baseIndexOf(array, value, fromIndex) { return value === value ? strictIndexOf(array, value, fromIndex) : baseFindIndex(array, baseIsNaN, fromIndex); } /** * This function is like `baseIndexOf` except that it accepts a comparator. * * @private * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @param {Function} comparator The comparator invoked per element. * @returns {number} Returns the index of the matched value, else `-1`. */ function baseIndexOfWith(array, value, fromIndex, comparator) { var index = fromIndex - 1, length = array.length; while (++index < length) { if (comparator(array[index], value)) { return index; } } return -1; } /** * The base implementation of `_.isNaN` without support for number objects. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. */ function baseIsNaN(value) { return value !== value; } /** * The base implementation of `_.mean` and `_.meanBy` without support for * iteratee shorthands. * * @private * @param {Array} array The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {number} Returns the mean. */ function baseMean(array, iteratee) { var length = array == null ? 0 : array.length; return length ? (baseSum(array, iteratee) / length) : NAN; } /** * The base implementation of `_.property` without support for deep paths. * * @private * @param {string} key The key of the property to get. * @returns {Function} Returns the new accessor function. */ function baseProperty(key) { return function(object) { return object == null ? undefined : object[key]; }; } /** * The base implementation of `_.propertyOf` without support for deep paths. * * @private * @param {Object} object The object to query. * @returns {Function} Returns the new accessor function. */ function basePropertyOf(object) { return function(key) { return object == null ? undefined : object[key]; }; } /** * The base implementation of `_.reduce` and `_.reduceRight`, without support * for iteratee shorthands, which iterates over `collection` using `eachFunc`. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} iteratee The function invoked per iteration. * @param {*} accumulator The initial value. * @param {boolean} initAccum Specify using the first or last element of * `collection` as the initial value. * @param {Function} eachFunc The function to iterate over `collection`. * @returns {*} Returns the accumulated value. */ function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { eachFunc(collection, function(value, index, collection) { accumulator = initAccum ? (initAccum = false, value) : iteratee(accumulator, value, index, collection); }); return accumulator; } /** * The base implementation of `_.sortBy` which uses `comparer` to define the * sort order of `array` and replaces criteria objects with their corresponding * values. * * @private * @param {Array} array The array to sort. * @param {Function} comparer The function to define sort order. * @returns {Array} Returns `array`. */ function baseSortBy(array, comparer) { var length = array.length; array.sort(comparer); while (length--) { array[length] = array[length].value; } return array; } /** * The base implementation of `_.sum` and `_.sumBy` without support for * iteratee shorthands. * * @private * @param {Array} array The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {number} Returns the sum. */ function baseSum(array, iteratee) { var result, index = -1, length = array.length; while (++index < length) { var current = iteratee(array[index]); if (current !== undefined) { result = result === undefined ? current : (result + current); } } return result; } /** * The base implementation of `_.times` without support for iteratee shorthands * or max array length checks. * * @private * @param {number} n The number of times to invoke `iteratee`. * @param {Function} iteratee The function invoked per iteration. * @returns {Array} Returns the array of results. */ function baseTimes(n, iteratee) { var index = -1, result = Array(n); while (++index < n) { result[index] = iteratee(index); } return result; } /** * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array * of key-value pairs for `object` corresponding to the property names of `props`. * * @private * @param {Object} object The object to query. * @param {Array} props The property names to get values for. * @returns {Object} Returns the key-value pairs. */ function baseToPairs(object, props) { return arrayMap(props, function(key) { return [key, object[key]]; }); } /** * The base implementation of `_.unary` without support for storing metadata. * * @private * @param {Function} func The function to cap arguments for. * @returns {Function} Returns the new capped function. */ function baseUnary(func) { return function(value) { return func(value); }; } /** * The base implementation of `_.values` and `_.valuesIn` which creates an * array of `object` property values corresponding to the property names * of `props`. * * @private * @param {Object} object The object to query. * @param {Array} props The property names to get values for. * @returns {Object} Returns the array of property values. */ function baseValues(object, props) { return arrayMap(props, function(key) { return object[key]; }); } /** * Checks if a `cache` value for `key` exists. * * @private * @param {Object} cache The cache to query. * @param {string} key The key of the entry to check. * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. */ function cacheHas(cache, key) { return cache.has(key); } /** * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol * that is not found in the character symbols. * * @private * @param {Array} strSymbols The string symbols to inspect. * @param {Array} chrSymbols The character symbols to find. * @returns {number} Returns the index of the first unmatched string symbol. */ function charsStartIndex(strSymbols, chrSymbols) { var index = -1, length = strSymbols.length; while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} return index; } /** * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol * that is not found in the character symbols. * * @private * @param {Array} strSymbols The string symbols to inspect. * @param {Array} chrSymbols The character symbols to find. * @returns {number} Returns the index of the last unmatched string symbol. */ function charsEndIndex(strSymbols, chrSymbols) { var index = strSymbols.length; while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} return index; } /** * Gets the number of `placeholder` occurrences in `array`. * * @private * @param {Array} array The array to inspect. * @param {*} placeholder The placeholder to search for. * @returns {number} Returns the placeholder count. */ function countHolders(array, placeholder) { var length = array.length, result = 0; while (length--) { if (array[length] === placeholder) { ++result; } } return result; } /** * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A * letters to basic Latin letters. * * @private * @param {string} letter The matched letter to deburr. * @returns {string} Returns the deburred letter. */ var deburrLetter = basePropertyOf(deburredLetters); /** * Used by `_.escape` to convert characters to HTML entities. * * @private * @param {string} chr The matched character to escape. * @returns {string} Returns the escaped character. */ var escapeHtmlChar = basePropertyOf(htmlEscapes); /** * Used by `_.template` to escape characters for inclusion in compiled string literals. * * @private * @param {string} chr The matched character to escape. * @returns {string} Returns the escaped character. */ function escapeStringChar(chr) { return '\\' + stringEscapes[chr]; } /** * Gets the value at `key` of `object`. * * @private * @param {Object} [object] The object to query. * @param {string} key The key of the property to get. * @returns {*} Returns the property value. */ function getValue(object, key) { return object == null ? undefined : object[key]; } /** * Checks if `string` contains Unicode symbols. * * @private * @param {string} string The string to inspect. * @returns {boolean} Returns `true` if a symbol is found, else `false`. */ function hasUnicode(string) { return reHasUnicode.test(string); } /** * Checks if `string` contains a word composed of Unicode symbols. * * @private * @param {string} string The string to inspect. * @returns {boolean} Returns `true` if a word is found, else `false`. */ function hasUnicodeWord(string) { return reHasUnicodeWord.test(string); } /** * Converts `iterator` to an array. * * @private * @param {Object} iterator The iterator to convert. * @returns {Array} Returns the converted array. */ function iteratorToArray(iterator) { var data, result = []; while (!(data = iterator.next()).done) { result.push(data.value); } return result; } /** * Converts `map` to its key-value pairs. * * @private * @param {Object} map The map to convert. * @returns {Array} Returns the key-value pairs. */ function mapToArray(map) { var index = -1, result = Array(map.size); map.forEach(function(value, key) { result[++index] = [key, value]; }); return result; } /** * Creates a unary function that invokes `func` with its argument transformed. * * @private * @param {Function} func The function to wrap. * @param {Function} transform The argument transform. * @returns {Function} Returns the new function. */ function overArg(func, transform) { return function(arg) { return func(transform(arg)); }; } /** * Replaces all `placeholder` elements in `array` with an internal placeholder * and returns an array of their indexes. * * @private * @param {Array} array The array to modify. * @param {*} placeholder The placeholder to replace. * @returns {Array} Returns the new array of placeholder indexes. */ function replaceHolders(array, placeholder) { var index = -1, length = array.length, resIndex = 0, result = []; while (++index < length) { var value = array[index]; if (value === placeholder || value === PLACEHOLDER) { array[index] = PLACEHOLDER; result[resIndex++] = index; } } return result; } /** * Converts `set` to an array of its values. * * @private * @param {Object} set The set to convert. * @returns {Array} Returns the values. */ function setToArray(set) { var index = -1, result = Array(set.size); set.forEach(function(value) { result[++index] = value; }); return result; } /** * Converts `set` to its value-value pairs. * * @private * @param {Object} set The set to convert. * @returns {Array} Returns the value-value pairs. */ function setToPairs(set) { var index = -1, result = Array(set.size); set.forEach(function(value) { result[++index] = [value, value]; }); return result; } /** * A specialized version of `_.indexOf` which performs strict equality * comparisons of values, i.e. `===`. * * @private * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. */ function strictIndexOf(array, value, fromIndex) { var index = fromIndex - 1, length = array.length; while (++index < length) { if (array[index] === value) { return index; } } return -1; } /** * A specialized version of `_.lastIndexOf` which performs strict equality * comparisons of values, i.e. `===`. * * @private * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. */ function strictLastIndexOf(array, value, fromIndex) { var index = fromIndex + 1; while (index--) { if (array[index] === value) { return index; } } return index; } /** * Gets the number of symbols in `string`. * * @private * @param {string} string The string to inspect. * @returns {number} Returns the string size. */ function stringSize(string) { return hasUnicode(string) ? unicodeSize(string) : asciiSize(string); } /** * Converts `string` to an array. * * @private * @param {string} string The string to convert. * @returns {Array} Returns the converted array. */ function stringToArray(string) { return hasUnicode(string) ? unicodeToArray(string) : asciiToArray(string); } /** * Used by `_.unescape` to convert HTML entities to characters. * * @private * @param {string} chr The matched character to unescape. * @returns {string} Returns the unescaped character. */ var unescapeHtmlChar = basePropertyOf(htmlUnescapes); /** * Gets the size of a Unicode `string`. * * @private * @param {string} string The string inspect. * @returns {number} Returns the string size. */ function unicodeSize(string) { var result = reUnicode.lastIndex = 0; while (reUnicode.test(string)) { ++result; } return result; } /** * Converts a Unicode `string` to an array. * * @private * @param {string} string The string to convert. * @returns {Array} Returns the converted array. */ function unicodeToArray(string) { return string.match(reUnicode) || []; } /** * Splits a Unicode `string` into an array of its words. * * @private * @param {string} The string to inspect. * @returns {Array} Returns the words of `string`. */ function unicodeWords(string) { return string.match(reUnicodeWord) || []; } /*--------------------------------------------------------------------------*/ /** * Create a new pristine `lodash` function using the `context` object. * * @static * @memberOf _ * @since 1.1.0 * @category Util * @param {Object} [context=root] The context object. * @returns {Function} Returns a new `lodash` function. * @example * * _.mixin({ 'foo': _.constant('foo') }); * * var lodash = _.runInContext(); * lodash.mixin({ 'bar': lodash.constant('bar') }); * * _.isFunction(_.foo); * // => true * _.isFunction(_.bar); * // => false * * lodash.isFunction(lodash.foo); * // => false * lodash.isFunction(lodash.bar); * // => true * * // Create a suped-up `defer` in Node.js. * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; */ var runInContext = (function runInContext(context) { context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); /** Built-in constructor references. */ var Array = context.Array, Date = context.Date, Error = context.Error, Function = context.Function, Math = context.Math, Object = context.Object, RegExp = context.RegExp, String = context.String, TypeError = context.TypeError; /** Used for built-in method references. */ var arrayProto = Array.prototype, funcProto = Function.prototype, objectProto = Object.prototype; /** Used to detect overreaching core-js shims. */ var coreJsData = context['__core-js_shared__']; /** Used to resolve the decompiled source of functions. */ var funcToString = funcProto.toString; /** Used to check objects for own properties. */ var hasOwnProperty = objectProto.hasOwnProperty; /** Used to generate unique IDs. */ var idCounter = 0; /** Used to detect methods masquerading as native. */ var maskSrcKey = (function() { var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); return uid ? ('Symbol(src)_1.' + uid) : ''; }()); /** * Used to resolve the * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) * of values. */ var nativeObjectToString = objectProto.toString; /** Used to infer the `Object` constructor. */ var objectCtorString = funcToString.call(Object); /** Used to restore the original `_` reference in `_.noConflict`. */ var oldDash = root._; /** Used to detect if a method is native. */ var reIsNative = RegExp('^' + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' ); /** Built-in value references. */ var Buffer = moduleExports ? context.Buffer : undefined, Symbol = context.Symbol, Uint8Array = context.Uint8Array, allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, getPrototype = overArg(Object.getPrototypeOf, Object), objectCreate = Object.create, propertyIsEnumerable = objectProto.propertyIsEnumerable, splice = arrayProto.splice, spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, symIterator = Symbol ? Symbol.iterator : undefined, symToStringTag = Symbol ? Symbol.toStringTag : undefined; var defineProperty = (function() { try { var func = getNative(Object, 'defineProperty'); func({}, '', {}); return func; } catch (e) {} }()); /** Mocked built-ins. */ var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, ctxNow = Date && Date.now !== root.Date.now && Date.now, ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; /* Built-in method references for those with the same name as other `lodash` methods. */ var nativeCeil = Math.ceil, nativeFloor = Math.floor, nativeGetSymbols = Object.getOwnPropertySymbols, nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, nativeIsFinite = context.isFinite, nativeJoin = arrayProto.join, nativeKeys = overArg(Object.keys, Object), nativeMax = Math.max, nativeMin = Math.min, nativeNow = Date.now, nativeParseInt = context.parseInt, nativeRandom = Math.random, nativeReverse = arrayProto.reverse; /* Built-in method references that are verified to be native. */ var DataView = getNative(context, 'DataView'), Map = getNative(context, 'Map'), Promise = getNative(context, 'Promise'), Set = getNative(context, 'Set'), WeakMap = getNative(context, 'WeakMap'), nativeCreate = getNative(Object, 'create'); /** Used to store function metadata. */ var metaMap = WeakMap && new WeakMap; /** Used to lookup unminified function names. */ var realNames = {}; /** Used to detect maps, sets, and weakmaps. */ var dataViewCtorString = toSource(DataView), mapCtorString = toSource(Map), promiseCtorString = toSource(Promise), setCtorString = toSource(Set), weakMapCtorString = toSource(WeakMap); /** Used to convert symbols to primitives and strings. */ var symbolProto = Symbol ? Symbol.prototype : undefined, symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, symbolToString = symbolProto ? symbolProto.toString : undefined; /*------------------------------------------------------------------------*/ /** * Creates a `lodash` object which wraps `value` to enable implicit method * chain sequences. Methods that operate on and return arrays, collections, * and functions can be chained together. Methods that retrieve a single value * or may return a primitive value will automatically end the chain sequence * and return the unwrapped value. Otherwise, the value must be unwrapped * with `_#value`. * * Explicit chain sequences, which must be unwrapped with `_#value`, may be * enabled using `_.chain`. * * The execution of chained methods is lazy, that is, it's deferred until * `_#value` is implicitly or explicitly called. * * Lazy evaluation allows several methods to support shortcut fusion. * Shortcut fusion is an optimization to merge iteratee calls; this avoids * the creation of intermediate arrays and can greatly reduce the number of * iteratee executions. Sections of a chain sequence qualify for shortcut * fusion if the section is applied to an array and iteratees accept only * one argument. The heuristic for whether a section qualifies for shortcut * fusion is subject to change. * * Chaining is supported in custom builds as long as the `_#value` method is * directly or indirectly included in the build. * * In addition to lodash methods, wrappers have `Array` and `String` methods. * * The wrapper `Array` methods are: * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` * * The wrapper `String` methods are: * `replace` and `split` * * The wrapper methods that support shortcut fusion are: * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` * * The chainable wrapper methods are: * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, * `zipObject`, `zipObjectDeep`, and `zipWith` * * The wrapper methods that are **not** chainable by default are: * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, * `upperFirst`, `value`, and `words` * * @name _ * @constructor * @category Seq * @param {*} value The value to wrap in a `lodash` instance. * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * function square(n) { * return n * n; * } * * var wrapped = _([1, 2, 3]); * * // Returns an unwrapped value. * wrapped.reduce(_.add); * // => 6 * * // Returns a wrapped value. * var squares = wrapped.map(square); * * _.isArray(squares); * // => false * * _.isArray(squares.value()); * // => true */ function lodash(value) { if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { if (value instanceof LodashWrapper) { return value; } if (hasOwnProperty.call(value, '__wrapped__')) { return wrapperClone(value); } } return new LodashWrapper(value); } /** * The base implementation of `_.create` without support for assigning * properties to the created object. * * @private * @param {Object} proto The object to inherit from. * @returns {Object} Returns the new object. */ var baseCreate = (function() { function object() {} return function(proto) { if (!isObject(proto)) { return {}; } if (objectCreate) { return objectCreate(proto); } object.prototype = proto; var result = new object; object.prototype = undefined; return result; }; }()); /** * The function whose prototype chain sequence wrappers inherit from. * * @private */ function baseLodash() { // No operation performed. } /** * The base constructor for creating `lodash` wrapper objects. * * @private * @param {*} value The value to wrap. * @param {boolean} [chainAll] Enable explicit method chain sequences. */ function LodashWrapper(value, chainAll) { this.__wrapped__ = value; this.__actions__ = []; this.__chain__ = !!chainAll; this.__index__ = 0; this.__values__ = undefined; } /** * By default, the template delimiters used by lodash are like those in * embedded Ruby (ERB) as well as ES2015 template strings. Change the * following template settings to use alternative delimiters. * * @static * @memberOf _ * @type {Object} */ lodash.templateSettings = { /** * Used to detect `data` property values to be HTML-escaped. * * @memberOf _.templateSettings * @type {RegExp} */ 'escape': reEscape, /** * Used to detect code to be evaluated. * * @memberOf _.templateSettings * @type {RegExp} */ 'evaluate': reEvaluate, /** * Used to detect `data` property values to inject. * * @memberOf _.templateSettings * @type {RegExp} */ 'interpolate': reInterpolate, /** * Used to reference the data object in the template text. * * @memberOf _.templateSettings * @type {string} */ 'variable': '', /** * Used to import variables into the compiled template. * * @memberOf _.templateSettings * @type {Object} */ 'imports': { /** * A reference to the `lodash` function. * * @memberOf _.templateSettings.imports * @type {Function} */ '_': lodash } }; // Ensure wrappers are instances of `baseLodash`. lodash.prototype = baseLodash.prototype; lodash.prototype.constructor = lodash; LodashWrapper.prototype = baseCreate(baseLodash.prototype); LodashWrapper.prototype.constructor = LodashWrapper; /*------------------------------------------------------------------------*/ /** * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. * * @private * @constructor * @param {*} value The value to wrap. */ function LazyWrapper(value) { this.__wrapped__ = value; this.__actions__ = []; this.__dir__ = 1; this.__filtered__ = false; this.__iteratees__ = []; this.__takeCount__ = MAX_ARRAY_LENGTH; this.__views__ = []; } /** * Creates a clone of the lazy wrapper object. * * @private * @name clone * @memberOf LazyWrapper * @returns {Object} Returns the cloned `LazyWrapper` object. */ function lazyClone() { var result = new LazyWrapper(this.__wrapped__); result.__actions__ = copyArray(this.__actions__); result.__dir__ = this.__dir__; result.__filtered__ = this.__filtered__; result.__iteratees__ = copyArray(this.__iteratees__); result.__takeCount__ = this.__takeCount__; result.__views__ = copyArray(this.__views__); return result; } /** * Reverses the direction of lazy iteration. * * @private * @name reverse * @memberOf LazyWrapper * @returns {Object} Returns the new reversed `LazyWrapper` object. */ function lazyReverse() { if (this.__filtered__) { var result = new LazyWrapper(this); result.__dir__ = -1; result.__filtered__ = true; } else { result = this.clone(); result.__dir__ *= -1; } return result; } /** * Extracts the unwrapped value from its lazy wrapper. * * @private * @name value * @memberOf LazyWrapper * @returns {*} Returns the unwrapped value. */ function lazyValue() { var array = this.__wrapped__.value(), dir = this.__dir__, isArr = isArray(array), isRight = dir < 0, arrLength = isArr ? array.length : 0, view = getView(0, arrLength, this.__views__), start = view.start, end = view.end, length = end - start, index = isRight ? end : (start - 1), iteratees = this.__iteratees__, iterLength = iteratees.length, resIndex = 0, takeCount = nativeMin(length, this.__takeCount__); if (!isArr || (!isRight && arrLength == length && takeCount == length)) { return baseWrapperValue(array, this.__actions__); } var result = []; outer: while (length-- && resIndex < takeCount) { index += dir; var iterIndex = -1, value = array[index]; while (++iterIndex < iterLength) { var data = iteratees[iterIndex], iteratee = data.iteratee, type = data.type, computed = iteratee(value); if (type == LAZY_MAP_FLAG) { value = computed; } else if (!computed) { if (type == LAZY_FILTER_FLAG) { continue outer; } else { break outer; } } } result[resIndex++] = value; } return result; } // Ensure `LazyWrapper` is an instance of `baseLodash`. LazyWrapper.prototype = baseCreate(baseLodash.prototype); LazyWrapper.prototype.constructor = LazyWrapper; /*------------------------------------------------------------------------*/ /** * Creates a hash object. * * @private * @constructor * @param {Array} [entries] The key-value pairs to cache. */ function Hash(entries) { var index = -1, length = entries == null ? 0 : entries.length; this.clear(); while (++index < length) { var entry = entries[index]; this.set(entry[0], entry[1]); } } /** * Removes all key-value entries from the hash. * * @private * @name clear * @memberOf Hash */ function hashClear() { this.__data__ = nativeCreate ? nativeCreate(null) : {}; this.size = 0; } /** * Removes `key` and its value from the hash. * * @private * @name delete * @memberOf Hash * @param {Object} hash The hash to modify. * @param {string} key The key of the value to remove. * @returns {boolean} Returns `true` if the entry was removed, else `false`. */ function hashDelete(key) { var result = this.has(key) && delete this.__data__[key]; this.size -= result ? 1 : 0; return result; } /** * Gets the hash value for `key`. * * @private * @name get * @memberOf Hash * @param {string} key The key of the value to get. * @returns {*} Returns the entry value. */ function hashGet(key) { var data = this.__data__; if (nativeCreate) { var result = data[key]; return result === HASH_UNDEFINED ? undefined : result; } return hasOwnProperty.call(data, key) ? data[key] : undefined; } /** * Checks if a hash value for `key` exists. * * @private * @name has * @memberOf Hash * @param {string} key The key of the entry to check. * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. */ function hashHas(key) { var data = this.__data__; return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); } /** * Sets the hash `key` to `value`. * * @private * @name set * @memberOf Hash * @param {string} key The key of the value to set. * @param {*} value The value to set. * @returns {Object} Returns the hash instance. */ function hashSet(key, value) { var data = this.__data__; this.size += this.has(key) ? 0 : 1; data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; return this; } // Add methods to `Hash`. Hash.prototype.clear = hashClear; Hash.prototype['delete'] = hashDelete; Hash.prototype.get = hashGet; Hash.prototype.has = hashHas; Hash.prototype.set = hashSet; /*------------------------------------------------------------------------*/ /** * Creates an list cache object. * * @private * @constructor * @param {Array} [entries] The key-value pairs to cache. */ function ListCache(entries) { var index = -1, length = entries == null ? 0 : entries.length; this.clear(); while (++index < length) { var entry = entries[index]; this.set(entry[0], entry[1]); } } /** * Removes all key-value entries from the list cache. * * @private * @name clear * @memberOf ListCache */ function listCacheClear() { this.__data__ = []; this.size = 0; } /** * Removes `key` and its value from the list cache. * * @private * @name delete * @memberOf ListCache * @param {string} key The key of the value to remove. * @returns {boolean} Returns `true` if the entry was removed, else `false`. */ function listCacheDelete(key) { var data = this.__data__, index = assocIndexOf(data, key); if (index < 0) { return false; } var lastIndex = data.length - 1; if (index == lastIndex) { data.pop(); } else { splice.call(data, index, 1); } --this.size; return true; } /** * Gets the list cache value for `key`. * * @private * @name get * @memberOf ListCache * @param {string} key The key of the value to get. * @returns {*} Returns the entry value. */ function listCacheGet(key) { var data = this.__data__, index = assocIndexOf(data, key); return index < 0 ? undefined : data[index][1]; } /** * Checks if a list cache value for `key` exists. * * @private * @name has * @memberOf ListCache * @param {string} key The key of the entry to check. * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. */ function listCacheHas(key) { return assocIndexOf(this.__data__, key) > -1; } /** * Sets the list cache `key` to `value`. * * @private * @name set * @memberOf ListCache * @param {string} key The key of the value to set. * @param {*} value The value to set. * @returns {Object} Returns the list cache instance. */ function listCacheSet(key, value) { var data = this.__data__, index = assocIndexOf(data, key); if (index < 0) { ++this.size; data.push([key, value]); } else { data[index][1] = value; } return this; } // Add methods to `ListCache`. ListCache.prototype.clear = listCacheClear; ListCache.prototype['delete'] = listCacheDelete; ListCache.prototype.get = listCacheGet; ListCache.prototype.has = listCacheHas; ListCache.prototype.set = listCacheSet; /*------------------------------------------------------------------------*/ /** * Creates a map cache object to store key-value pairs. * * @private * @constructor * @param {Array} [entries] The key-value pairs to cache. */ function MapCache(entries) { var index = -1, length = entries == null ? 0 : entries.length; this.clear(); while (++index < length) { var entry = entries[index]; this.set(entry[0], entry[1]); } } /** * Removes all key-value entries from the map. * * @private * @name clear * @memberOf MapCache */ function mapCacheClear() { this.size = 0; this.__data__ = { 'hash': new Hash, 'map': new (Map || ListCache), 'string': new Hash }; } /** * Removes `key` and its value from the map. * * @private * @name delete * @memberOf MapCache * @param {string} key The key of the value to remove. * @returns {boolean} Returns `true` if the entry was removed, else `false`. */ function mapCacheDelete(key) { var result = getMapData(this, key)['delete'](key); this.size -= result ? 1 : 0; return result; } /** * Gets the map value for `key`. * * @private * @name get * @memberOf MapCache * @param {string} key The key of the value to get. * @returns {*} Returns the entry value. */ function mapCacheGet(key) { return getMapData(this, key).get(key); } /** * Checks if a map value for `key` exists. * * @private * @name has * @memberOf MapCache * @param {string} key The key of the entry to check. * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. */ function mapCacheHas(key) { return getMapData(this, key).has(key); } /** * Sets the map `key` to `value`. * * @private * @name set * @memberOf MapCache * @param {string} key The key of the value to set. * @param {*} value The value to set. * @returns {Object} Returns the map cache instance. */ function mapCacheSet(key, value) { var data = getMapData(this, key), size = data.size; data.set(key, value); this.size += data.size == size ? 0 : 1; return this; } // Add methods to `MapCache`. MapCache.prototype.clear = mapCacheClear; MapCache.prototype['delete'] = mapCacheDelete; MapCache.prototype.get = mapCacheGet; MapCache.prototype.has = mapCacheHas; MapCache.prototype.set = mapCacheSet; /*------------------------------------------------------------------------*/ /** * * Creates an array cache object to store unique values. * * @private * @constructor * @param {Array} [values] The values to cache. */ function SetCache(values) { var index = -1, length = values == null ? 0 : values.length; this.__data__ = new MapCache; while (++index < length) { this.add(values[index]); } } /** * Adds `value` to the array cache. * * @private * @name add * @memberOf SetCache * @alias push * @param {*} value The value to cache. * @returns {Object} Returns the cache instance. */ function setCacheAdd(value) { this.__data__.set(value, HASH_UNDEFINED); return this; } /** * Checks if `value` is in the array cache. * * @private * @name has * @memberOf SetCache * @param {*} value The value to search for. * @returns {number} Returns `true` if `value` is found, else `false`. */ function setCacheHas(value) { return this.__data__.has(value); } // Add methods to `SetCache`. SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; SetCache.prototype.has = setCacheHas; /*------------------------------------------------------------------------*/ /** * Creates a stack cache object to store key-value pairs. * * @private * @constructor * @param {Array} [entries] The key-value pairs to cache. */ function Stack(entries) { var data = this.__data__ = new ListCache(entries); this.size = data.size; } /** * Removes all key-value entries from the stack. * * @private * @name clear * @memberOf Stack */ function stackClear() { this.__data__ = new ListCache; this.size = 0; } /** * Removes `key` and its value from the stack. * * @private * @name delete * @memberOf Stack * @param {string} key The key of the value to remove. * @returns {boolean} Returns `true` if the entry was removed, else `false`. */ function stackDelete(key) { var data = this.__data__, result = data['delete'](key); this.size = data.size; return result; } /** * Gets the stack value for `key`. * * @private * @name get * @memberOf Stack * @param {string} key The key of the value to get. * @returns {*} Returns the entry value. */ function stackGet(key) { return this.__data__.get(key); } /** * Checks if a stack value for `key` exists. * * @private * @name has * @memberOf Stack * @param {string} key The key of the entry to check. * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. */ function stackHas(key) { return this.__data__.has(key); } /** * Sets the stack `key` to `value`. * * @private * @name set * @memberOf Stack * @param {string} key The key of the value to set. * @param {*} value The value to set. * @returns {Object} Returns the stack cache instance. */ function stackSet(key, value) { var data = this.__data__; if (data instanceof ListCache) { var pairs = data.__data__; if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { pairs.push([key, value]); this.size = ++data.size; return this; } data = this.__data__ = new MapCache(pairs); } data.set(key, value); this.size = data.size; return this; } // Add methods to `Stack`. Stack.prototype.clear = stackClear; Stack.prototype['delete'] = stackDelete; Stack.prototype.get = stackGet; Stack.prototype.has = stackHas; Stack.prototype.set = stackSet; /*------------------------------------------------------------------------*/ /** * Creates an array of the enumerable property names of the array-like `value`. * * @private * @param {*} value The value to query. * @param {boolean} inherited Specify returning inherited property names. * @returns {Array} Returns the array of property names. */ function arrayLikeKeys(value, inherited) { var isArr = isArray(value), isArg = !isArr && isArguments(value), isBuff = !isArr && !isArg && isBuffer(value), isType = !isArr && !isArg && !isBuff && isTypedArray(value), skipIndexes = isArr || isArg || isBuff || isType, result = skipIndexes ? baseTimes(value.length, String) : [], length = result.length; for (var key in value) { if ((inherited || hasOwnProperty.call(value, key)) && !(skipIndexes && ( // Safari 9 has enumerable `arguments.length` in strict mode. key == 'length' || // Node.js 0.10 has enumerable non-index properties on buffers. (isBuff && (key == 'offset' || key == 'parent')) || // PhantomJS 2 has enumerable non-index properties on typed arrays. (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || // Skip index properties. isIndex(key, length) ))) { result.push(key); } } return result; } /** * A specialized version of `_.sample` for arrays. * * @private * @param {Array} array The array to sample. * @returns {*} Returns the random element. */ function arraySample(array) { var length = array.length; return length ? array[baseRandom(0, length - 1)] : undefined; } /** * A specialized version of `_.sampleSize` for arrays. * * @private * @param {Array} array The array to sample. * @param {number} n The number of elements to sample. * @returns {Array} Returns the random elements. */ function arraySampleSize(array, n) { return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); } /** * A specialized version of `_.shuffle` for arrays. * * @private * @param {Array} array The array to shuffle. * @returns {Array} Returns the new shuffled array. */ function arrayShuffle(array) { return shuffleSelf(copyArray(array)); } /** * This function is like `assignValue` except that it doesn't assign * `undefined` values. * * @private * @param {Object} object The object to modify. * @param {string} key The key of the property to assign. * @param {*} value The value to assign. */ function assignMergeValue(object, key, value) { if ((value !== undefined && !eq(object[key], value)) || (value === undefined && !(key in object))) { baseAssignValue(object, key, value); } } /** * Assigns `value` to `key` of `object` if the existing value is not equivalent * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. * * @private * @param {Object} object The object to modify. * @param {string} key The key of the property to assign. * @param {*} value The value to assign. */ function assignValue(object, key, value) { var objValue = object[key]; if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || (value === undefined && !(key in object))) { baseAssignValue(object, key, value); } } /** * Gets the index at which the `key` is found in `array` of key-value pairs. * * @private * @param {Array} array The array to inspect. * @param {*} key The key to search for. * @returns {number} Returns the index of the matched value, else `-1`. */ function assocIndexOf(array, key) { var length = array.length; while (length--) { if (eq(array[length][0], key)) { return length; } } return -1; } /** * Aggregates elements of `collection` on `accumulator` with keys transformed * by `iteratee` and values set by `setter`. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} setter The function to set `accumulator` values. * @param {Function} iteratee The iteratee to transform keys. * @param {Object} accumulator The initial aggregated object. * @returns {Function} Returns `accumulator`. */ function baseAggregator(collection, setter, iteratee, accumulator) { baseEach(collection, function(value, key, collection) { setter(accumulator, value, iteratee(value), collection); }); return accumulator; } /** * The base implementation of `_.assign` without support for multiple sources * or `customizer` functions. * * @private * @param {Object} object The destination object. * @param {Object} source The source object. * @returns {Object} Returns `object`. */ function baseAssign(object, source) { return object && copyObject(source, keys(source), object); } /** * The base implementation of `_.assignIn` without support for multiple sources * or `customizer` functions. * * @private * @param {Object} object The destination object. * @param {Object} source The source object. * @returns {Object} Returns `object`. */ function baseAssignIn(object, source) { return object && copyObject(source, keysIn(source), object); } /** * The base implementation of `assignValue` and `assignMergeValue` without * value checks. * * @private * @param {Object} object The object to modify. * @param {string} key The key of the property to assign. * @param {*} value The value to assign. */ function baseAssignValue(object, key, value) { if (key == '__proto__' && defineProperty) { defineProperty(object, key, { 'configurable': true, 'enumerable': true, 'value': value, 'writable': true }); } else { object[key] = value; } } /** * The base implementation of `_.at` without support for individual paths. * * @private * @param {Object} object The object to iterate over. * @param {string[]} paths The property paths to pick. * @returns {Array} Returns the picked elements. */ function baseAt(object, paths) { var index = -1, length = paths.length, result = Array(length), skip = object == null; while (++index < length) { result[index] = skip ? undefined : get(object, paths[index]); } return result; } /** * The base implementation of `_.clamp` which doesn't coerce arguments. * * @private * @param {number} number The number to clamp. * @param {number} [lower] The lower bound. * @param {number} upper The upper bound. * @returns {number} Returns the clamped number. */ function baseClamp(number, lower, upper) { if (number === number) { if (upper !== undefined) { number = number <= upper ? number : upper; } if (lower !== undefined) { number = number >= lower ? number : lower; } } return number; } /** * The base implementation of `_.clone` and `_.cloneDeep` which tracks * traversed objects. * * @private * @param {*} value The value to clone. * @param {boolean} bitmask The bitmask flags. * 1 - Deep clone * 2 - Flatten inherited properties * 4 - Clone symbols * @param {Function} [customizer] The function to customize cloning. * @param {string} [key] The key of `value`. * @param {Object} [object] The parent object of `value`. * @param {Object} [stack] Tracks traversed objects and their clone counterparts. * @returns {*} Returns the cloned value. */ function baseClone(value, bitmask, customizer, key, object, stack) { var result, isDeep = bitmask & CLONE_DEEP_FLAG, isFlat = bitmask & CLONE_FLAT_FLAG, isFull = bitmask & CLONE_SYMBOLS_FLAG; if (customizer) { result = object ? customizer(value, key, object, stack) : customizer(value); } if (result !== undefined) { return result; } if (!isObject(value)) { return value; } var isArr = isArray(value); if (isArr) { result = initCloneArray(value); if (!isDeep) { return copyArray(value, result); } } else { var tag = getTag(value), isFunc = tag == funcTag || tag == genTag; if (isBuffer(value)) { return cloneBuffer(value, isDeep); } if (tag == objectTag || tag == argsTag || (isFunc && !object)) { result = (isFlat || isFunc) ? {} : initCloneObject(value); if (!isDeep) { return isFlat ? copySymbolsIn(value, baseAssignIn(result, value)) : copySymbols(value, baseAssign(result, value)); } } else { if (!cloneableTags[tag]) { return object ? value : {}; } result = initCloneByTag(value, tag, isDeep); } } // Check for circular references and return its corresponding clone. stack || (stack = new Stack); var stacked = stack.get(value); if (stacked) { return stacked; } stack.set(value, result); if (isSet(value)) { value.forEach(function(subValue) { result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); }); return result; } if (isMap(value)) { value.forEach(function(subValue, key) { result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); }); return result; } var keysFunc = isFull ? (isFlat ? getAllKeysIn : getAllKeys) : (isFlat ? keysIn : keys); var props = isArr ? undefined : keysFunc(value); arrayEach(props || value, function(subValue, key) { if (props) { key = subValue; subValue = value[key]; } // Recursively populate clone (susceptible to call stack limits). assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); }); return result; } /** * The base implementation of `_.conforms` which doesn't clone `source`. * * @private * @param {Object} source The object of property predicates to conform to. * @returns {Function} Returns the new spec function. */ function baseConforms(source) { var props = keys(source); return function(object) { return baseConformsTo(object, source, props); }; } /** * The base implementation of `_.conformsTo` which accepts `props` to check. * * @private * @param {Object} object The object to inspect. * @param {Object} source The object of property predicates to conform to. * @returns {boolean} Returns `true` if `object` conforms, else `false`. */ function baseConformsTo(object, source, props) { var length = props.length; if (object == null) { return !length; } object = Object(object); while (length--) { var key = props[length], predicate = source[key], value = object[key]; if ((value === undefined && !(key in object)) || !predicate(value)) { return false; } } return true; } /** * The base implementation of `_.delay` and `_.defer` which accepts `args` * to provide to `func`. * * @private * @param {Function} func The function to delay. * @param {number} wait The number of milliseconds to delay invocation. * @param {Array} args The arguments to provide to `func`. * @returns {number|Object} Returns the timer id or timeout object. */ function baseDelay(func, wait, args) { if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } return setTimeout(function() { func.apply(undefined, args); }, wait); } /** * The base implementation of methods like `_.difference` without support * for excluding multiple arrays or iteratee shorthands. * * @private * @param {Array} array The array to inspect. * @param {Array} values The values to exclude. * @param {Function} [iteratee] The iteratee invoked per element. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of filtered values. */ function baseDifference(array, values, iteratee, comparator) { var index = -1, includes = arrayIncludes, isCommon = true, length = array.length, result = [], valuesLength = values.length; if (!length) { return result; } if (iteratee) { values = arrayMap(values, baseUnary(iteratee)); } if (comparator) { includes = arrayIncludesWith; isCommon = false; } else if (values.length >= LARGE_ARRAY_SIZE) { includes = cacheHas; isCommon = false; values = new SetCache(values); } outer: while (++index < length) { var value = array[index], computed = iteratee == null ? value : iteratee(value); value = (comparator || value !== 0) ? value : 0; if (isCommon && computed === computed) { var valuesIndex = valuesLength; while (valuesIndex--) { if (values[valuesIndex] === computed) { continue outer; } } result.push(value); } else if (!includes(values, computed, comparator)) { result.push(value); } } return result; } /** * The base implementation of `_.forEach` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array|Object} Returns `collection`. */ var baseEach = createBaseEach(baseForOwn); /** * The base implementation of `_.forEachRight` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array|Object} Returns `collection`. */ var baseEachRight = createBaseEach(baseForOwnRight, true); /** * The base implementation of `_.every` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {boolean} Returns `true` if all elements pass the predicate check, * else `false` */ function baseEvery(collection, predicate) { var result = true; baseEach(collection, function(value, index, collection) { result = !!predicate(value, index, collection); return result; }); return result; } /** * The base implementation of methods like `_.max` and `_.min` which accepts a * `comparator` to determine the extremum value. * * @private * @param {Array} array The array to iterate over. * @param {Function} iteratee The iteratee invoked per iteration. * @param {Function} comparator The comparator used to compare values. * @returns {*} Returns the extremum value. */ function baseExtremum(array, iteratee, comparator) { var index = -1, length = array.length; while (++index < length) { var value = array[index], current = iteratee(value); if (current != null && (computed === undefined ? (current === current && !isSymbol(current)) : comparator(current, computed) )) { var computed = current, result = value; } } return result; } /** * The base implementation of `_.fill` without an iteratee call guard. * * @private * @param {Array} array The array to fill. * @param {*} value The value to fill `array` with. * @param {number} [start=0] The start position. * @param {number} [end=array.length] The end position. * @returns {Array} Returns `array`. */ function baseFill(array, value, start, end) { var length = array.length; start = toInteger(start); if (start < 0) { start = -start > length ? 0 : (length + start); } end = (end === undefined || end > length) ? length : toInteger(end); if (end < 0) { end += length; } end = start > end ? 0 : toLength(end); while (start < end) { array[start++] = value; } return array; } /** * The base implementation of `_.filter` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {Array} Returns the new filtered array. */ function baseFilter(collection, predicate) { var result = []; baseEach(collection, function(value, index, collection) { if (predicate(value, index, collection)) { result.push(value); } }); return result; } /** * The base implementation of `_.flatten` with support for restricting flattening. * * @private * @param {Array} array The array to flatten. * @param {number} depth The maximum recursion depth. * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. * @param {Array} [result=[]] The initial result value. * @returns {Array} Returns the new flattened array. */ function baseFlatten(array, depth, predicate, isStrict, result) { var index = -1, length = array.length; predicate || (predicate = isFlattenable); result || (result = []); while (++index < length) { var value = array[index]; if (depth > 0 && predicate(value)) { if (depth > 1) { // Recursively flatten arrays (susceptible to call stack limits). baseFlatten(value, depth - 1, predicate, isStrict, result); } else { arrayPush(result, value); } } else if (!isStrict) { result[result.length] = value; } } return result; } /** * The base implementation of `baseForOwn` which iterates over `object` * properties returned by `keysFunc` and invokes `iteratee` for each property. * Iteratee functions may exit iteration early by explicitly returning `false`. * * @private * @param {Object} object The object to iterate over. * @param {Function} iteratee The function invoked per iteration. * @param {Function} keysFunc The function to get the keys of `object`. * @returns {Object} Returns `object`. */ var baseFor = createBaseFor(); /** * This function is like `baseFor` except that it iterates over properties * in the opposite order. * * @private * @param {Object} object The object to iterate over. * @param {Function} iteratee The function invoked per iteration. * @param {Function} keysFunc The function to get the keys of `object`. * @returns {Object} Returns `object`. */ var baseForRight = createBaseFor(true); /** * The base implementation of `_.forOwn` without support for iteratee shorthands. * * @private * @param {Object} object The object to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Object} Returns `object`. */ function baseForOwn(object, iteratee) { return object && baseFor(object, iteratee, keys); } /** * The base implementation of `_.forOwnRight` without support for iteratee shorthands. * * @private * @param {Object} object The object to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Object} Returns `object`. */ function baseForOwnRight(object, iteratee) { return object && baseForRight(object, iteratee, keys); } /** * The base implementation of `_.functions` which creates an array of * `object` function property names filtered from `props`. * * @private * @param {Object} object The object to inspect. * @param {Array} props The property names to filter. * @returns {Array} Returns the function names. */ function baseFunctions(object, props) { return arrayFilter(props, function(key) { return isFunction(object[key]); }); } /** * The base implementation of `_.get` without support for default values. * * @private * @param {Object} object The object to query. * @param {Array|string} path The path of the property to get. * @returns {*} Returns the resolved value. */ function baseGet(object, path) { path = castPath(path, object); var index = 0, length = path.length; while (object != null && index < length) { object = object[toKey(path[index++])]; } return (index && index == length) ? object : undefined; } /** * The base implementation of `getAllKeys` and `getAllKeysIn` which uses * `keysFunc` and `symbolsFunc` to get the enumerable property names and * symbols of `object`. * * @private * @param {Object} object The object to query. * @param {Function} keysFunc The function to get the keys of `object`. * @param {Function} symbolsFunc The function to get the symbols of `object`. * @returns {Array} Returns the array of property names and symbols. */ function baseGetAllKeys(object, keysFunc, symbolsFunc) { var result = keysFunc(object); return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); } /** * The base implementation of `getTag` without fallbacks for buggy environments. * * @private * @param {*} value The value to query. * @returns {string} Returns the `toStringTag`. */ function baseGetTag(value) { if (value == null) { return value === undefined ? undefinedTag : nullTag; } return (symToStringTag && symToStringTag in Object(value)) ? getRawTag(value) : objectToString(value); } /** * The base implementation of `_.gt` which doesn't coerce arguments. * * @private * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is greater than `other`, * else `false`. */ function baseGt(value, other) { return value > other; } /** * The base implementation of `_.has` without support for deep paths. * * @private * @param {Object} [object] The object to query. * @param {Array|string} key The key to check. * @returns {boolean} Returns `true` if `key` exists, else `false`. */ function baseHas(object, key) { return object != null && hasOwnProperty.call(object, key); } /** * The base implementation of `_.hasIn` without support for deep paths. * * @private * @param {Object} [object] The object to query. * @param {Array|string} key The key to check. * @returns {boolean} Returns `true` if `key` exists, else `false`. */ function baseHasIn(object, key) { return object != null && key in Object(object); } /** * The base implementation of `_.inRange` which doesn't coerce arguments. * * @private * @param {number} number The number to check. * @param {number} start The start of the range. * @param {number} end The end of the range. * @returns {boolean} Returns `true` if `number` is in the range, else `false`. */ function baseInRange(number, start, end) { return number >= nativeMin(start, end) && number < nativeMax(start, end); } /** * The base implementation of methods like `_.intersection`, without support * for iteratee shorthands, that accepts an array of arrays to inspect. * * @private * @param {Array} arrays The arrays to inspect. * @param {Function} [iteratee] The iteratee invoked per element. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of shared values. */ function baseIntersection(arrays, iteratee, comparator) { var includes = comparator ? arrayIncludesWith : arrayIncludes, length = arrays[0].length, othLength = arrays.length, othIndex = othLength, caches = Array(othLength), maxLength = Infinity, result = []; while (othIndex--) { var array = arrays[othIndex]; if (othIndex && iteratee) { array = arrayMap(array, baseUnary(iteratee)); } maxLength = nativeMin(array.length, maxLength); caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) ? new SetCache(othIndex && array) : undefined; } array = arrays[0]; var index = -1, seen = caches[0]; outer: while (++index < length && result.length < maxLength) { var value = array[index], computed = iteratee ? iteratee(value) : value; value = (comparator || value !== 0) ? value : 0; if (!(seen ? cacheHas(seen, computed) : includes(result, computed, comparator) )) { othIndex = othLength; while (--othIndex) { var cache = caches[othIndex]; if (!(cache ? cacheHas(cache, computed) : includes(arrays[othIndex], computed, comparator)) ) { continue outer; } } if (seen) { seen.push(computed); } result.push(value); } } return result; } /** * The base implementation of `_.invert` and `_.invertBy` which inverts * `object` with values transformed by `iteratee` and set by `setter`. * * @private * @param {Object} object The object to iterate over. * @param {Function} setter The function to set `accumulator` values. * @param {Function} iteratee The iteratee to transform values. * @param {Object} accumulator The initial inverted object. * @returns {Function} Returns `accumulator`. */ function baseInverter(object, setter, iteratee, accumulator) { baseForOwn(object, function(value, key, object) { setter(accumulator, iteratee(value), key, object); }); return accumulator; } /** * The base implementation of `_.invoke` without support for individual * method arguments. * * @private * @param {Object} object The object to query. * @param {Array|string} path The path of the method to invoke. * @param {Array} args The arguments to invoke the method with. * @returns {*} Returns the result of the invoked method. */ function baseInvoke(object, path, args) { path = castPath(path, object); object = parent(object, path); var func = object == null ? object : object[toKey(last(path))]; return func == null ? undefined : apply(func, object, args); } /** * The base implementation of `_.isArguments`. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an `arguments` object, */ function baseIsArguments(value) { return isObjectLike(value) && baseGetTag(value) == argsTag; } /** * The base implementation of `_.isArrayBuffer` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. */ function baseIsArrayBuffer(value) { return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; } /** * The base implementation of `_.isDate` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a date object, else `false`. */ function baseIsDate(value) { return isObjectLike(value) && baseGetTag(value) == dateTag; } /** * The base implementation of `_.isEqual` which supports partial comparisons * and tracks traversed objects. * * @private * @param {*} value The value to compare. * @param {*} other The other value to compare. * @param {boolean} bitmask The bitmask flags. * 1 - Unordered comparison * 2 - Partial comparison * @param {Function} [customizer] The function to customize comparisons. * @param {Object} [stack] Tracks traversed `value` and `other` objects. * @returns {boolean} Returns `true` if the values are equivalent, else `false`. */ function baseIsEqual(value, other, bitmask, customizer, stack) { if (value === other) { return true; } if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { return value !== value && other !== other; } return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); } /** * A specialized version of `baseIsEqual` for arrays and objects which performs * deep comparisons and tracks traversed objects enabling objects with circular * references to be compared. * * @private * @param {Object} object The object to compare. * @param {Object} other The other object to compare. * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. * @param {Function} customizer The function to customize comparisons. * @param {Function} equalFunc The function to determine equivalents of values. * @param {Object} [stack] Tracks traversed `object` and `other` objects. * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. */ function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { var objIsArr = isArray(object), othIsArr = isArray(other), objTag = objIsArr ? arrayTag : getTag(object), othTag = othIsArr ? arrayTag : getTag(other); objTag = objTag == argsTag ? objectTag : objTag; othTag = othTag == argsTag ? objectTag : othTag; var objIsObj = objTag == objectTag, othIsObj = othTag == objectTag, isSameTag = objTag == othTag; if (isSameTag && isBuffer(object)) { if (!isBuffer(other)) { return false; } objIsArr = true; objIsObj = false; } if (isSameTag && !objIsObj) { stack || (stack = new Stack); return (objIsArr || isTypedArray(object)) ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } if (!(bitmask & COMPARE_PARTIAL_FLAG)) { var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); if (objIsWrapped || othIsWrapped) { var objUnwrapped = objIsWrapped ? object.value() : object, othUnwrapped = othIsWrapped ? other.value() : other; stack || (stack = new Stack); return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); } } if (!isSameTag) { return false; } stack || (stack = new Stack); return equalObjects(object, other, bitmask, customizer, equalFunc, stack); } /** * The base implementation of `_.isMap` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a map, else `false`. */ function baseIsMap(value) { return isObjectLike(value) && getTag(value) == mapTag; } /** * The base implementation of `_.isMatch` without support for iteratee shorthands. * * @private * @param {Object} object The object to inspect. * @param {Object} source The object of property values to match. * @param {Array} matchData The property names, values, and compare flags to match. * @param {Function} [customizer] The function to customize comparisons. * @returns {boolean} Returns `true` if `object` is a match, else `false`. */ function baseIsMatch(object, source, matchData, customizer) { var index = matchData.length, length = index, noCustomizer = !customizer; if (object == null) { return !length; } object = Object(object); while (index--) { var data = matchData[index]; if ((noCustomizer && data[2]) ? data[1] !== object[data[0]] : !(data[0] in object) ) { return false; } } while (++index < length) { data = matchData[index]; var key = data[0], objValue = object[key], srcValue = data[1]; if (noCustomizer && data[2]) { if (objValue === undefined && !(key in object)) { return false; } } else { var stack = new Stack; if (customizer) { var result = customizer(objValue, srcValue, key, object, source, stack); } if (!(result === undefined ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) : result )) { return false; } } } return true; } /** * The base implementation of `_.isNative` without bad shim checks. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a native function, * else `false`. */ function baseIsNative(value) { if (!isObject(value) || isMasked(value)) { return false; } var pattern = isFunction(value) ? reIsNative : reIsHostCtor; return pattern.test(toSource(value)); } /** * The base implementation of `_.isRegExp` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. */ function baseIsRegExp(value) { return isObjectLike(value) && baseGetTag(value) == regexpTag; } /** * The base implementation of `_.isSet` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a set, else `false`. */ function baseIsSet(value) { return isObjectLike(value) && getTag(value) == setTag; } /** * The base implementation of `_.isTypedArray` without Node.js optimizations. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. */ function baseIsTypedArray(value) { return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; } /** * The base implementation of `_.iteratee`. * * @private * @param {*} [value=_.identity] The value to convert to an iteratee. * @returns {Function} Returns the iteratee. */ function baseIteratee(value) { // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. if (typeof value == 'function') { return value; } if (value == null) { return identity; } if (typeof value == 'object') { return isArray(value) ? baseMatchesProperty(value[0], value[1]) : baseMatches(value); } return property(value); } /** * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names. */ function baseKeys(object) { if (!isPrototype(object)) { return nativeKeys(object); } var result = []; for (var key in Object(object)) { if (hasOwnProperty.call(object, key) && key != 'constructor') { result.push(key); } } return result; } /** * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names. */ function baseKeysIn(object) { if (!isObject(object)) { return nativeKeysIn(object); } var isProto = isPrototype(object), result = []; for (var key in object) { if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { result.push(key); } } return result; } /** * The base implementation of `_.lt` which doesn't coerce arguments. * * @private * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is less than `other`, * else `false`. */ function baseLt(value, other) { return value < other; } /** * The base implementation of `_.map` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {Array} Returns the new mapped array. */ function baseMap(collection, iteratee) { var index = -1, result = isArrayLike(collection) ? Array(collection.length) : []; baseEach(collection, function(value, key, collection) { result[++index] = iteratee(value, key, collection); }); return result; } /** * The base implementation of `_.matches` which doesn't clone `source`. * * @private * @param {Object} source The object of property values to match. * @returns {Function} Returns the new spec function. */ function baseMatches(source) { var matchData = getMatchData(source); if (matchData.length == 1 && matchData[0][2]) { return matchesStrictComparable(matchData[0][0], matchData[0][1]); } return function(object) { return object === source || baseIsMatch(object, source, matchData); }; } /** * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. * * @private * @param {string} path The path of the property to get. * @param {*} srcValue The value to match. * @returns {Function} Returns the new spec function. */ function baseMatchesProperty(path, srcValue) { if (isKey(path) && isStrictComparable(srcValue)) { return matchesStrictComparable(toKey(path), srcValue); } return function(object) { var objValue = get(object, path); return (objValue === undefined && objValue === srcValue) ? hasIn(object, path) : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); }; } /** * The base implementation of `_.merge` without support for multiple sources. * * @private * @param {Object} object The destination object. * @param {Object} source The source object. * @param {number} srcIndex The index of `source`. * @param {Function} [customizer] The function to customize merged values. * @param {Object} [stack] Tracks traversed source values and their merged * counterparts. */ function baseMerge(object, source, srcIndex, customizer, stack) { if (object === source) { return; } baseFor(source, function(srcValue, key) { if (isObject(srcValue)) { stack || (stack = new Stack); baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); } else { var newValue = customizer ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) : undefined; if (newValue === undefined) { newValue = srcValue; } assignMergeValue(object, key, newValue); } }, keysIn); } /** * A specialized version of `baseMerge` for arrays and objects which performs * deep merges and tracks traversed objects enabling objects with circular * references to be merged. * * @private * @param {Object} object The destination object. * @param {Object} source The source object. * @param {string} key The key of the value to merge. * @param {number} srcIndex The index of `source`. * @param {Function} mergeFunc The function to merge values. * @param {Function} [customizer] The function to customize assigned values. * @param {Object} [stack] Tracks traversed source values and their merged * counterparts. */ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { var objValue = safeGet(object, key), srcValue = safeGet(source, key), stacked = stack.get(srcValue); if (stacked) { assignMergeValue(object, key, stacked); return; } var newValue = customizer ? customizer(objValue, srcValue, (key + ''), object, source, stack) : undefined; var isCommon = newValue === undefined; if (isCommon) { var isArr = isArray(srcValue), isBuff = !isArr && isBuffer(srcValue), isTyped = !isArr && !isBuff && isTypedArray(srcValue); newValue = srcValue; if (isArr || isBuff || isTyped) { if (isArray(objValue)) { newValue = objValue; } else if (isArrayLikeObject(objValue)) { newValue = copyArray(objValue); } else if (isBuff) { isCommon = false; newValue = cloneBuffer(srcValue, true); } else if (isTyped) { isCommon = false; newValue = cloneTypedArray(srcValue, true); } else { newValue = []; } } else if (isPlainObject(srcValue) || isArguments(srcValue)) { newValue = objValue; if (isArguments(objValue)) { newValue = toPlainObject(objValue); } else if (!isObject(objValue) || isFunction(objValue)) { newValue = initCloneObject(srcValue); } } else { isCommon = false; } } if (isCommon) { // Recursively merge objects and arrays (susceptible to call stack limits). stack.set(srcValue, newValue); mergeFunc(newValue, srcValue, srcIndex, customizer, stack); stack['delete'](srcValue); } assignMergeValue(object, key, newValue); } /** * The base implementation of `_.nth` which doesn't coerce arguments. * * @private * @param {Array} array The array to query. * @param {number} n The index of the element to return. * @returns {*} Returns the nth element of `array`. */ function baseNth(array, n) { var length = array.length; if (!length) { return; } n += n < 0 ? length : 0; return isIndex(n, length) ? array[n] : undefined; } /** * The base implementation of `_.orderBy` without param guards. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. * @param {string[]} orders The sort orders of `iteratees`. * @returns {Array} Returns the new sorted array. */ function baseOrderBy(collection, iteratees, orders) { var index = -1; iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee())); var result = baseMap(collection, function(value, key, collection) { var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); }); return { 'criteria': criteria, 'index': ++index, 'value': value }; }); return baseSortBy(result, function(object, other) { return compareMultiple(object, other, orders); }); } /** * The base implementation of `_.pick` without support for individual * property identifiers. * * @private * @param {Object} object The source object. * @param {string[]} paths The property paths to pick. * @returns {Object} Returns the new object. */ function basePick(object, paths) { return basePickBy(object, paths, function(value, path) { return hasIn(object, path); }); } /** * The base implementation of `_.pickBy` without support for iteratee shorthands. * * @private * @param {Object} object The source object. * @param {string[]} paths The property paths to pick. * @param {Function} predicate The function invoked per property. * @returns {Object} Returns the new object. */ function basePickBy(object, paths, predicate) { var index = -1, length = paths.length, result = {}; while (++index < length) { var path = paths[index], value = baseGet(object, path); if (predicate(value, path)) { baseSet(result, castPath(path, object), value); } } return result; } /** * A specialized version of `baseProperty` which supports deep paths. * * @private * @param {Array|string} path The path of the property to get. * @returns {Function} Returns the new accessor function. */ function basePropertyDeep(path) { return function(object) { return baseGet(object, path); }; } /** * The base implementation of `_.pullAllBy` without support for iteratee * shorthands. * * @private * @param {Array} array The array to modify. * @param {Array} values The values to remove. * @param {Function} [iteratee] The iteratee invoked per element. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns `array`. */ function basePullAll(array, values, iteratee, comparator) { var indexOf = comparator ? baseIndexOfWith : baseIndexOf, index = -1, length = values.length, seen = array; if (array === values) { values = copyArray(values); } if (iteratee) { seen = arrayMap(array, baseUnary(iteratee)); } while (++index < length) { var fromIndex = 0, value = values[index], computed = iteratee ? iteratee(value) : value; while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { if (seen !== array) { splice.call(seen, fromIndex, 1); } splice.call(array, fromIndex, 1); } } return array; } /** * The base implementation of `_.pullAt` without support for individual * indexes or capturing the removed elements. * * @private * @param {Array} array The array to modify. * @param {number[]} indexes The indexes of elements to remove. * @returns {Array} Returns `array`. */ function basePullAt(array, indexes) { var length = array ? indexes.length : 0, lastIndex = length - 1; while (length--) { var index = indexes[length]; if (length == lastIndex || index !== previous) { var previous = index; if (isIndex(index)) { splice.call(array, index, 1); } else { baseUnset(array, index); } } } return array; } /** * The base implementation of `_.random` without support for returning * floating-point numbers. * * @private * @param {number} lower The lower bound. * @param {number} upper The upper bound. * @returns {number} Returns the random number. */ function baseRandom(lower, upper) { return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); } /** * The base implementation of `_.range` and `_.rangeRight` which doesn't * coerce arguments. * * @private * @param {number} start The start of the range. * @param {number} end The end of the range. * @param {number} step The value to increment or decrement by. * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Array} Returns the range of numbers. */ function baseRange(start, end, step, fromRight) { var index = -1, length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), result = Array(length); while (length--) { result[fromRight ? length : ++index] = start; start += step; } return result; } /** * The base implementation of `_.repeat` which doesn't coerce arguments. * * @private * @param {string} string The string to repeat. * @param {number} n The number of times to repeat the string. * @returns {string} Returns the repeated string. */ function baseRepeat(string, n) { var result = ''; if (!string || n < 1 || n > MAX_SAFE_INTEGER) { return result; } // Leverage the exponentiation by squaring algorithm for a faster repeat. // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. do { if (n % 2) { result += string; } n = nativeFloor(n / 2); if (n) { string += string; } } while (n); return result; } /** * The base implementation of `_.rest` which doesn't validate or coerce arguments. * * @private * @param {Function} func The function to apply a rest parameter to. * @param {number} [start=func.length-1] The start position of the rest parameter. * @returns {Function} Returns the new function. */ function baseRest(func, start) { return setToString(overRest(func, start, identity), func + ''); } /** * The base implementation of `_.sample`. * * @private * @param {Array|Object} collection The collection to sample. * @returns {*} Returns the random element. */ function baseSample(collection) { return arraySample(values(collection)); } /** * The base implementation of `_.sampleSize` without param guards. * * @private * @param {Array|Object} collection The collection to sample. * @param {number} n The number of elements to sample. * @returns {Array} Returns the random elements. */ function baseSampleSize(collection, n) { var array = values(collection); return shuffleSelf(array, baseClamp(n, 0, array.length)); } /** * The base implementation of `_.set`. * * @private * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {*} value The value to set. * @param {Function} [customizer] The function to customize path creation. * @returns {Object} Returns `object`. */ function baseSet(object, path, value, customizer) { if (!isObject(object)) { return object; } path = castPath(path, object); var index = -1, length = path.length, lastIndex = length - 1, nested = object; while (nested != null && ++index < length) { var key = toKey(path[index]), newValue = value; if (index != lastIndex) { var objValue = nested[key]; newValue = customizer ? customizer(objValue, key, nested) : undefined; if (newValue === undefined) { newValue = isObject(objValue) ? objValue : (isIndex(path[index + 1]) ? [] : {}); } } assignValue(nested, key, newValue); nested = nested[key]; } return object; } /** * The base implementation of `setData` without support for hot loop shorting. * * @private * @param {Function} func The function to associate metadata with. * @param {*} data The metadata. * @returns {Function} Returns `func`. */ var baseSetData = !metaMap ? identity : function(func, data) { metaMap.set(func, data); return func; }; /** * The base implementation of `setToString` without support for hot loop shorting. * * @private * @param {Function} func The function to modify. * @param {Function} string The `toString` result. * @returns {Function} Returns `func`. */ var baseSetToString = !defineProperty ? identity : function(func, string) { return defineProperty(func, 'toString', { 'configurable': true, 'enumerable': false, 'value': constant(string), 'writable': true }); }; /** * The base implementation of `_.shuffle`. * * @private * @param {Array|Object} collection The collection to shuffle. * @returns {Array} Returns the new shuffled array. */ function baseShuffle(collection) { return shuffleSelf(values(collection)); } /** * The base implementation of `_.slice` without an iteratee call guard. * * @private * @param {Array} array The array to slice. * @param {number} [start=0] The start position. * @param {number} [end=array.length] The end position. * @returns {Array} Returns the slice of `array`. */ function baseSlice(array, start, end) { var index = -1, length = array.length; if (start < 0) { start = -start > length ? 0 : (length + start); } end = end > length ? length : end; if (end < 0) { end += length; } length = start > end ? 0 : ((end - start) >>> 0); start >>>= 0; var result = Array(length); while (++index < length) { result[index] = array[index + start]; } return result; } /** * The base implementation of `_.some` without support for iteratee shorthands. * * @private * @param {Array|Object} collection The collection to iterate over. * @param {Function} predicate The function invoked per iteration. * @returns {boolean} Returns `true` if any element passes the predicate check, * else `false`. */ function baseSome(collection, predicate) { var result; baseEach(collection, function(value, index, collection) { result = predicate(value, index, collection); return !result; }); return !!result; } /** * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which * performs a binary search of `array` to determine the index at which `value` * should be inserted into `array` in order to maintain its sort order. * * @private * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @param {boolean} [retHighest] Specify returning the highest qualified index. * @returns {number} Returns the index at which `value` should be inserted * into `array`. */ function baseSortedIndex(array, value, retHighest) { var low = 0, high = array == null ? low : array.length; if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { while (low < high) { var mid = (low + high) >>> 1, computed = array[mid]; if (computed !== null && !isSymbol(computed) && (retHighest ? (computed <= value) : (computed < value))) { low = mid + 1; } else { high = mid; } } return high; } return baseSortedIndexBy(array, value, identity, retHighest); } /** * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` * which invokes `iteratee` for `value` and each element of `array` to compute * their sort ranking. The iteratee is invoked with one argument; (value). * * @private * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @param {Function} iteratee The iteratee invoked per element. * @param {boolean} [retHighest] Specify returning the highest qualified index. * @returns {number} Returns the index at which `value` should be inserted * into `array`. */ function baseSortedIndexBy(array, value, iteratee, retHighest) { value = iteratee(value); var low = 0, high = array == null ? 0 : array.length, valIsNaN = value !== value, valIsNull = value === null, valIsSymbol = isSymbol(value), valIsUndefined = value === undefined; while (low < high) { var mid = nativeFloor((low + high) / 2), computed = iteratee(array[mid]), othIsDefined = computed !== undefined, othIsNull = computed === null, othIsReflexive = computed === computed, othIsSymbol = isSymbol(computed); if (valIsNaN) { var setLow = retHighest || othIsReflexive; } else if (valIsUndefined) { setLow = othIsReflexive && (retHighest || othIsDefined); } else if (valIsNull) { setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); } else if (valIsSymbol) { setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); } else if (othIsNull || othIsSymbol) { setLow = false; } else { setLow = retHighest ? (computed <= value) : (computed < value); } if (setLow) { low = mid + 1; } else { high = mid; } } return nativeMin(high, MAX_ARRAY_INDEX); } /** * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without * support for iteratee shorthands. * * @private * @param {Array} array The array to inspect. * @param {Function} [iteratee] The iteratee invoked per element. * @returns {Array} Returns the new duplicate free array. */ function baseSortedUniq(array, iteratee) { var index = -1, length = array.length, resIndex = 0, result = []; while (++index < length) { var value = array[index], computed = iteratee ? iteratee(value) : value; if (!index || !eq(computed, seen)) { var seen = computed; result[resIndex++] = value === 0 ? 0 : value; } } return result; } /** * The base implementation of `_.toNumber` which doesn't ensure correct * conversions of binary, hexadecimal, or octal string values. * * @private * @param {*} value The value to process. * @returns {number} Returns the number. */ function baseToNumber(value) { if (typeof value == 'number') { return value; } if (isSymbol(value)) { return NAN; } return +value; } /** * The base implementation of `_.toString` which doesn't convert nullish * values to empty strings. * * @private * @param {*} value The value to process. * @returns {string} Returns the string. */ function baseToString(value) { // Exit early for strings to avoid a performance hit in some environments. if (typeof value == 'string') { return value; } if (isArray(value)) { // Recursively convert values (susceptible to call stack limits). return arrayMap(value, baseToString) + ''; } if (isSymbol(value)) { return symbolToString ? symbolToString.call(value) : ''; } var result = (value + ''); return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; } /** * The base implementation of `_.uniqBy` without support for iteratee shorthands. * * @private * @param {Array} array The array to inspect. * @param {Function} [iteratee] The iteratee invoked per element. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new duplicate free array. */ function baseUniq(array, iteratee, comparator) { var index = -1, includes = arrayIncludes, length = array.length, isCommon = true, result = [], seen = result; if (comparator) { isCommon = false; includes = arrayIncludesWith; } else if (length >= LARGE_ARRAY_SIZE) { var set = iteratee ? null : createSet(array); if (set) { return setToArray(set); } isCommon = false; includes = cacheHas; seen = new SetCache; } else { seen = iteratee ? [] : result; } outer: while (++index < length) { var value = array[index], computed = iteratee ? iteratee(value) : value; value = (comparator || value !== 0) ? value : 0; if (isCommon && computed === computed) { var seenIndex = seen.length; while (seenIndex--) { if (seen[seenIndex] === computed) { continue outer; } } if (iteratee) { seen.push(computed); } result.push(value); } else if (!includes(seen, computed, comparator)) { if (seen !== result) { seen.push(computed); } result.push(value); } } return result; } /** * The base implementation of `_.unset`. * * @private * @param {Object} object The object to modify. * @param {Array|string} path The property path to unset. * @returns {boolean} Returns `true` if the property is deleted, else `false`. */ function baseUnset(object, path) { path = castPath(path, object); object = parent(object, path); return object == null || delete object[toKey(last(path))]; } /** * The base implementation of `_.update`. * * @private * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to update. * @param {Function} updater The function to produce the updated value. * @param {Function} [customizer] The function to customize path creation. * @returns {Object} Returns `object`. */ function baseUpdate(object, path, updater, customizer) { return baseSet(object, path, updater(baseGet(object, path)), customizer); } /** * The base implementation of methods like `_.dropWhile` and `_.takeWhile` * without support for iteratee shorthands. * * @private * @param {Array} array The array to query. * @param {Function} predicate The function invoked per iteration. * @param {boolean} [isDrop] Specify dropping elements instead of taking them. * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Array} Returns the slice of `array`. */ function baseWhile(array, predicate, isDrop, fromRight) { var length = array.length, index = fromRight ? length : -1; while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {} return isDrop ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); } /** * The base implementation of `wrapperValue` which returns the result of * performing a sequence of actions on the unwrapped `value`, where each * successive action is supplied the return value of the previous. * * @private * @param {*} value The unwrapped value. * @param {Array} actions Actions to perform to resolve the unwrapped value. * @returns {*} Returns the resolved value. */ function baseWrapperValue(value, actions) { var result = value; if (result instanceof LazyWrapper) { result = result.value(); } return arrayReduce(actions, function(result, action) { return action.func.apply(action.thisArg, arrayPush([result], action.args)); }, result); } /** * The base implementation of methods like `_.xor`, without support for * iteratee shorthands, that accepts an array of arrays to inspect. * * @private * @param {Array} arrays The arrays to inspect. * @param {Function} [iteratee] The iteratee invoked per element. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of values. */ function baseXor(arrays, iteratee, comparator) { var length = arrays.length; if (length < 2) { return length ? baseUniq(arrays[0]) : []; } var index = -1, result = Array(length); while (++index < length) { var array = arrays[index], othIndex = -1; while (++othIndex < length) { if (othIndex != index) { result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); } } } return baseUniq(baseFlatten(result, 1), iteratee, comparator); } /** * This base implementation of `_.zipObject` which assigns values using `assignFunc`. * * @private * @param {Array} props The property identifiers. * @param {Array} values The property values. * @param {Function} assignFunc The function to assign values. * @returns {Object} Returns the new object. */ function baseZipObject(props, values, assignFunc) { var index = -1, length = props.length, valsLength = values.length, result = {}; while (++index < length) { var value = index < valsLength ? values[index] : undefined; assignFunc(result, props[index], value); } return result; } /** * Casts `value` to an empty array if it's not an array like object. * * @private * @param {*} value The value to inspect. * @returns {Array|Object} Returns the cast array-like object. */ function castArrayLikeObject(value) { return isArrayLikeObject(value) ? value : []; } /** * Casts `value` to `identity` if it's not a function. * * @private * @param {*} value The value to inspect. * @returns {Function} Returns cast function. */ function castFunction(value) { return typeof value == 'function' ? value : identity; } /** * Casts `value` to a path array if it's not one. * * @private * @param {*} value The value to inspect. * @param {Object} [object] The object to query keys on. * @returns {Array} Returns the cast property path array. */ function castPath(value, object) { if (isArray(value)) { return value; } return isKey(value, object) ? [value] : stringToPath(toString(value)); } /** * A `baseRest` alias which can be replaced with `identity` by module * replacement plugins. * * @private * @type {Function} * @param {Function} func The function to apply a rest parameter to. * @returns {Function} Returns the new function. */ var castRest = baseRest; /** * Casts `array` to a slice if it's needed. * * @private * @param {Array} array The array to inspect. * @param {number} start The start position. * @param {number} [end=array.length] The end position. * @returns {Array} Returns the cast slice. */ function castSlice(array, start, end) { var length = array.length; end = end === undefined ? length : end; return (!start && end >= length) ? array : baseSlice(array, start, end); } /** * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). * * @private * @param {number|Object} id The timer id or timeout object of the timer to clear. */ var clearTimeout = ctxClearTimeout || function(id) { return root.clearTimeout(id); }; /** * Creates a clone of `buffer`. * * @private * @param {Buffer} buffer The buffer to clone. * @param {boolean} [isDeep] Specify a deep clone. * @returns {Buffer} Returns the cloned buffer. */ function cloneBuffer(buffer, isDeep) { if (isDeep) { return buffer.slice(); } var length = buffer.length, result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); buffer.copy(result); return result; } /** * Creates a clone of `arrayBuffer`. * * @private * @param {ArrayBuffer} arrayBuffer The array buffer to clone. * @returns {ArrayBuffer} Returns the cloned array buffer. */ function cloneArrayBuffer(arrayBuffer) { var result = new arrayBuffer.constructor(arrayBuffer.byteLength); new Uint8Array(result).set(new Uint8Array(arrayBuffer)); return result; } /** * Creates a clone of `dataView`. * * @private * @param {Object} dataView The data view to clone. * @param {boolean} [isDeep] Specify a deep clone. * @returns {Object} Returns the cloned data view. */ function cloneDataView(dataView, isDeep) { var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); } /** * Creates a clone of `regexp`. * * @private * @param {Object} regexp The regexp to clone. * @returns {Object} Returns the cloned regexp. */ function cloneRegExp(regexp) { var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); result.lastIndex = regexp.lastIndex; return result; } /** * Creates a clone of the `symbol` object. * * @private * @param {Object} symbol The symbol object to clone. * @returns {Object} Returns the cloned symbol object. */ function cloneSymbol(symbol) { return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; } /** * Creates a clone of `typedArray`. * * @private * @param {Object} typedArray The typed array to clone. * @param {boolean} [isDeep] Specify a deep clone. * @returns {Object} Returns the cloned typed array. */ function cloneTypedArray(typedArray, isDeep) { var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); } /** * Compares values to sort them in ascending order. * * @private * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {number} Returns the sort order indicator for `value`. */ function compareAscending(value, other) { if (value !== other) { var valIsDefined = value !== undefined, valIsNull = value === null, valIsReflexive = value === value, valIsSymbol = isSymbol(value); var othIsDefined = other !== undefined, othIsNull = other === null, othIsReflexive = other === other, othIsSymbol = isSymbol(other); if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || (valIsNull && othIsDefined && othIsReflexive) || (!valIsDefined && othIsReflexive) || !valIsReflexive) { return 1; } if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || (othIsNull && valIsDefined && valIsReflexive) || (!othIsDefined && valIsReflexive) || !othIsReflexive) { return -1; } } return 0; } /** * Used by `_.orderBy` to compare multiple properties of a value to another * and stable sort them. * * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, * specify an order of "desc" for descending or "asc" for ascending sort order * of corresponding values. * * @private * @param {Object} object The object to compare. * @param {Object} other The other object to compare. * @param {boolean[]|string[]} orders The order to sort by for each property. * @returns {number} Returns the sort order indicator for `object`. */ function compareMultiple(object, other, orders) { var index = -1, objCriteria = object.criteria, othCriteria = other.criteria, length = objCriteria.length, ordersLength = orders.length; while (++index < length) { var result = compareAscending(objCriteria[index], othCriteria[index]); if (result) { if (index >= ordersLength) { return result; } var order = orders[index]; return result * (order == 'desc' ? -1 : 1); } } // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications // that causes it, under certain circumstances, to provide the same value for // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 // for more details. // // This also ensures a stable sort in V8 and other engines. // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. return object.index - other.index; } /** * Creates an array that is the composition of partially applied arguments, * placeholders, and provided arguments into a single array of arguments. * * @private * @param {Array} args The provided arguments. * @param {Array} partials The arguments to prepend to those provided. * @param {Array} holders The `partials` placeholder indexes. * @params {boolean} [isCurried] Specify composing for a curried function. * @returns {Array} Returns the new array of composed arguments. */ function composeArgs(args, partials, holders, isCurried) { var argsIndex = -1, argsLength = args.length, holdersLength = holders.length, leftIndex = -1, leftLength = partials.length, rangeLength = nativeMax(argsLength - holdersLength, 0), result = Array(leftLength + rangeLength), isUncurried = !isCurried; while (++leftIndex < leftLength) { result[leftIndex] = partials[leftIndex]; } while (++argsIndex < holdersLength) { if (isUncurried || argsIndex < argsLength) { result[holders[argsIndex]] = args[argsIndex]; } } while (rangeLength--) { result[leftIndex++] = args[argsIndex++]; } return result; } /** * This function is like `composeArgs` except that the arguments composition * is tailored for `_.partialRight`. * * @private * @param {Array} args The provided arguments. * @param {Array} partials The arguments to append to those provided. * @param {Array} holders The `partials` placeholder indexes. * @params {boolean} [isCurried] Specify composing for a curried function. * @returns {Array} Returns the new array of composed arguments. */ function composeArgsRight(args, partials, holders, isCurried) { var argsIndex = -1, argsLength = args.length, holdersIndex = -1, holdersLength = holders.length, rightIndex = -1, rightLength = partials.length, rangeLength = nativeMax(argsLength - holdersLength, 0), result = Array(rangeLength + rightLength), isUncurried = !isCurried; while (++argsIndex < rangeLength) { result[argsIndex] = args[argsIndex]; } var offset = argsIndex; while (++rightIndex < rightLength) { result[offset + rightIndex] = partials[rightIndex]; } while (++holdersIndex < holdersLength) { if (isUncurried || argsIndex < argsLength) { result[offset + holders[holdersIndex]] = args[argsIndex++]; } } return result; } /** * Copies the values of `source` to `array`. * * @private * @param {Array} source The array to copy values from. * @param {Array} [array=[]] The array to copy values to. * @returns {Array} Returns `array`. */ function copyArray(source, array) { var index = -1, length = source.length; array || (array = Array(length)); while (++index < length) { array[index] = source[index]; } return array; } /** * Copies properties of `source` to `object`. * * @private * @param {Object} source The object to copy properties from. * @param {Array} props The property identifiers to copy. * @param {Object} [object={}] The object to copy properties to. * @param {Function} [customizer] The function to customize copied values. * @returns {Object} Returns `object`. */ function copyObject(source, props, object, customizer) { var isNew = !object; object || (object = {}); var index = -1, length = props.length; while (++index < length) { var key = props[index]; var newValue = customizer ? customizer(object[key], source[key], key, object, source) : undefined; if (newValue === undefined) { newValue = source[key]; } if (isNew) { baseAssignValue(object, key, newValue); } else { assignValue(object, key, newValue); } } return object; } /** * Copies own symbols of `source` to `object`. * * @private * @param {Object} source The object to copy symbols from. * @param {Object} [object={}] The object to copy symbols to. * @returns {Object} Returns `object`. */ function copySymbols(source, object) { return copyObject(source, getSymbols(source), object); } /** * Copies own and inherited symbols of `source` to `object`. * * @private * @param {Object} source The object to copy symbols from. * @param {Object} [object={}] The object to copy symbols to. * @returns {Object} Returns `object`. */ function copySymbolsIn(source, object) { return copyObject(source, getSymbolsIn(source), object); } /** * Creates a function like `_.groupBy`. * * @private * @param {Function} setter The function to set accumulator values. * @param {Function} [initializer] The accumulator object initializer. * @returns {Function} Returns the new aggregator function. */ function createAggregator(setter, initializer) { return function(collection, iteratee) { var func = isArray(collection) ? arrayAggregator : baseAggregator, accumulator = initializer ? initializer() : {}; return func(collection, setter, getIteratee(iteratee, 2), accumulator); }; } /** * Creates a function like `_.assign`. * * @private * @param {Function} assigner The function to assign values. * @returns {Function} Returns the new assigner function. */ function createAssigner(assigner) { return baseRest(function(object, sources) { var index = -1, length = sources.length, customizer = length > 1 ? sources[length - 1] : undefined, guard = length > 2 ? sources[2] : undefined; customizer = (assigner.length > 3 && typeof customizer == 'function') ? (length--, customizer) : undefined; if (guard && isIterateeCall(sources[0], sources[1], guard)) { customizer = length < 3 ? undefined : customizer; length = 1; } object = Object(object); while (++index < length) { var source = sources[index]; if (source) { assigner(object, source, index, customizer); } } return object; }); } /** * Creates a `baseEach` or `baseEachRight` function. * * @private * @param {Function} eachFunc The function to iterate over a collection. * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Function} Returns the new base function. */ function createBaseEach(eachFunc, fromRight) { return function(collection, iteratee) { if (collection == null) { return collection; } if (!isArrayLike(collection)) { return eachFunc(collection, iteratee); } var length = collection.length, index = fromRight ? length : -1, iterable = Object(collection); while ((fromRight ? index-- : ++index < length)) { if (iteratee(iterable[index], index, iterable) === false) { break; } } return collection; }; } /** * Creates a base function for methods like `_.forIn` and `_.forOwn`. * * @private * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Function} Returns the new base function. */ function createBaseFor(fromRight) { return function(object, iteratee, keysFunc) { var index = -1, iterable = Object(object), props = keysFunc(object), length = props.length; while (length--) { var key = props[fromRight ? length : ++index]; if (iteratee(iterable[key], key, iterable) === false) { break; } } return object; }; } /** * Creates a function that wraps `func` to invoke it with the optional `this` * binding of `thisArg`. * * @private * @param {Function} func The function to wrap. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {*} [thisArg] The `this` binding of `func`. * @returns {Function} Returns the new wrapped function. */ function createBind(func, bitmask, thisArg) { var isBind = bitmask & WRAP_BIND_FLAG, Ctor = createCtor(func); function wrapper() { var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; return fn.apply(isBind ? thisArg : this, arguments); } return wrapper; } /** * Creates a function like `_.lowerFirst`. * * @private * @param {string} methodName The name of the `String` case method to use. * @returns {Function} Returns the new case function. */ function createCaseFirst(methodName) { return function(string) { string = toString(string); var strSymbols = hasUnicode(string) ? stringToArray(string) : undefined; var chr = strSymbols ? strSymbols[0] : string.charAt(0); var trailing = strSymbols ? castSlice(strSymbols, 1).join('') : string.slice(1); return chr[methodName]() + trailing; }; } /** * Creates a function like `_.camelCase`. * * @private * @param {Function} callback The function to combine each word. * @returns {Function} Returns the new compounder function. */ function createCompounder(callback) { return function(string) { return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); }; } /** * Creates a function that produces an instance of `Ctor` regardless of * whether it was invoked as part of a `new` expression or by `call` or `apply`. * * @private * @param {Function} Ctor The constructor to wrap. * @returns {Function} Returns the new wrapped function. */ function createCtor(Ctor) { return function() { // Use a `switch` statement to work with class constructors. See // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist // for more details. var args = arguments; switch (args.length) { case 0: return new Ctor; case 1: return new Ctor(args[0]); case 2: return new Ctor(args[0], args[1]); case 3: return new Ctor(args[0], args[1], args[2]); case 4: return new Ctor(args[0], args[1], args[2], args[3]); case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); } var thisBinding = baseCreate(Ctor.prototype), result = Ctor.apply(thisBinding, args); // Mimic the constructor's `return` behavior. // See https://es5.github.io/#x13.2.2 for more details. return isObject(result) ? result : thisBinding; }; } /** * Creates a function that wraps `func` to enable currying. * * @private * @param {Function} func The function to wrap. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {number} arity The arity of `func`. * @returns {Function} Returns the new wrapped function. */ function createCurry(func, bitmask, arity) { var Ctor = createCtor(func); function wrapper() { var length = arguments.length, args = Array(length), index = length, placeholder = getHolder(wrapper); while (index--) { args[index] = arguments[index]; } var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) ? [] : replaceHolders(args, placeholder); length -= holders.length; if (length < arity) { return createRecurry( func, bitmask, createHybrid, wrapper.placeholder, undefined, args, holders, undefined, undefined, arity - length); } var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; return apply(fn, this, args); } return wrapper; } /** * Creates a `_.find` or `_.findLast` function. * * @private * @param {Function} findIndexFunc The function to find the collection index. * @returns {Function} Returns the new find function. */ function createFind(findIndexFunc) { return function(collection, predicate, fromIndex) { var iterable = Object(collection); if (!isArrayLike(collection)) { var iteratee = getIteratee(predicate, 3); collection = keys(collection); predicate = function(key) { return iteratee(iterable[key], key, iterable); }; } var index = findIndexFunc(collection, predicate, fromIndex); return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; }; } /** * Creates a `_.flow` or `_.flowRight` function. * * @private * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Function} Returns the new flow function. */ function createFlow(fromRight) { return flatRest(function(funcs) { var length = funcs.length, index = length, prereq = LodashWrapper.prototype.thru; if (fromRight) { funcs.reverse(); } while (index--) { var func = funcs[index]; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } if (prereq && !wrapper && getFuncName(func) == 'wrapper') { var wrapper = new LodashWrapper([], true); } } index = wrapper ? index : length; while (++index < length) { func = funcs[index]; var funcName = getFuncName(func), data = funcName == 'wrapper' ? getData(func) : undefined; if (data && isLaziable(data[0]) && data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && !data[4].length && data[9] == 1 ) { wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); } else { wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func); } } return function() { var args = arguments, value = args[0]; if (wrapper && args.length == 1 && isArray(value)) { return wrapper.plant(value).value(); } var index = 0, result = length ? funcs[index].apply(this, args) : value; while (++index < length) { result = funcs[index].call(this, result); } return result; }; }); } /** * Creates a function that wraps `func` to invoke it with optional `this` * binding of `thisArg`, partial application, and currying. * * @private * @param {Function|string} func The function or method name to wrap. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {*} [thisArg] The `this` binding of `func`. * @param {Array} [partials] The arguments to prepend to those provided to * the new function. * @param {Array} [holders] The `partials` placeholder indexes. * @param {Array} [partialsRight] The arguments to append to those provided * to the new function. * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. * @param {Array} [argPos] The argument positions of the new function. * @param {number} [ary] The arity cap of `func`. * @param {number} [arity] The arity of `func`. * @returns {Function} Returns the new wrapped function. */ function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { var isAry = bitmask & WRAP_ARY_FLAG, isBind = bitmask & WRAP_BIND_FLAG, isBindKey = bitmask & WRAP_BIND_KEY_FLAG, isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), isFlip = bitmask & WRAP_FLIP_FLAG, Ctor = isBindKey ? undefined : createCtor(func); function wrapper() { var length = arguments.length, args = Array(length), index = length; while (index--) { args[index] = arguments[index]; } if (isCurried) { var placeholder = getHolder(wrapper), holdersCount = countHolders(args, placeholder); } if (partials) { args = composeArgs(args, partials, holders, isCurried); } if (partialsRight) { args = composeArgsRight(args, partialsRight, holdersRight, isCurried); } length -= holdersCount; if (isCurried && length < arity) { var newHolders = replaceHolders(args, placeholder); return createRecurry( func, bitmask, createHybrid, wrapper.placeholder, thisArg, args, newHolders, argPos, ary, arity - length ); } var thisBinding = isBind ? thisArg : this, fn = isBindKey ? thisBinding[func] : func; length = args.length; if (argPos) { args = reorder(args, argPos); } else if (isFlip && length > 1) { args.reverse(); } if (isAry && ary < length) { args.length = ary; } if (this && this !== root && this instanceof wrapper) { fn = Ctor || createCtor(fn); } return fn.apply(thisBinding, args); } return wrapper; } /** * Creates a function like `_.invertBy`. * * @private * @param {Function} setter The function to set accumulator values. * @param {Function} toIteratee The function to resolve iteratees. * @returns {Function} Returns the new inverter function. */ function createInverter(setter, toIteratee) { return function(object, iteratee) { return baseInverter(object, setter, toIteratee(iteratee), {}); }; } /** * Creates a function that performs a mathematical operation on two values. * * @private * @param {Function} operator The function to perform the operation. * @param {number} [defaultValue] The value used for `undefined` arguments. * @returns {Function} Returns the new mathematical operation function. */ function createMathOperation(operator, defaultValue) { return function(value, other) { var result; if (value === undefined && other === undefined) { return defaultValue; } if (value !== undefined) { result = value; } if (other !== undefined) { if (result === undefined) { return other; } if (typeof value == 'string' || typeof other == 'string') { value = baseToString(value); other = baseToString(other); } else { value = baseToNumber(value); other = baseToNumber(other); } result = operator(value, other); } return result; }; } /** * Creates a function like `_.over`. * * @private * @param {Function} arrayFunc The function to iterate over iteratees. * @returns {Function} Returns the new over function. */ function createOver(arrayFunc) { return flatRest(function(iteratees) { iteratees = arrayMap(iteratees, baseUnary(getIteratee())); return baseRest(function(args) { var thisArg = this; return arrayFunc(iteratees, function(iteratee) { return apply(iteratee, thisArg, args); }); }); }); } /** * Creates the padding for `string` based on `length`. The `chars` string * is truncated if the number of characters exceeds `length`. * * @private * @param {number} length The padding length. * @param {string} [chars=' '] The string used as padding. * @returns {string} Returns the padding for `string`. */ function createPadding(length, chars) { chars = chars === undefined ? ' ' : baseToString(chars); var charsLength = chars.length; if (charsLength < 2) { return charsLength ? baseRepeat(chars, length) : chars; } var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); return hasUnicode(chars) ? castSlice(stringToArray(result), 0, length).join('') : result.slice(0, length); } /** * Creates a function that wraps `func` to invoke it with the `this` binding * of `thisArg` and `partials` prepended to the arguments it receives. * * @private * @param {Function} func The function to wrap. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {*} thisArg The `this` binding of `func`. * @param {Array} partials The arguments to prepend to those provided to * the new function. * @returns {Function} Returns the new wrapped function. */ function createPartial(func, bitmask, thisArg, partials) { var isBind = bitmask & WRAP_BIND_FLAG, Ctor = createCtor(func); function wrapper() { var argsIndex = -1, argsLength = arguments.length, leftIndex = -1, leftLength = partials.length, args = Array(leftLength + argsLength), fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; while (++leftIndex < leftLength) { args[leftIndex] = partials[leftIndex]; } while (argsLength--) { args[leftIndex++] = arguments[++argsIndex]; } return apply(fn, isBind ? thisArg : this, args); } return wrapper; } /** * Creates a `_.range` or `_.rangeRight` function. * * @private * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {Function} Returns the new range function. */ function createRange(fromRight) { return function(start, end, step) { if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { end = step = undefined; } // Ensure the sign of `-0` is preserved. start = toFinite(start); if (end === undefined) { end = start; start = 0; } else { end = toFinite(end); } step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); return baseRange(start, end, step, fromRight); }; } /** * Creates a function that performs a relational operation on two values. * * @private * @param {Function} operator The function to perform the operation. * @returns {Function} Returns the new relational operation function. */ function createRelationalOperation(operator) { return function(value, other) { if (!(typeof value == 'string' && typeof other == 'string')) { value = toNumber(value); other = toNumber(other); } return operator(value, other); }; } /** * Creates a function that wraps `func` to continue currying. * * @private * @param {Function} func The function to wrap. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @param {Function} wrapFunc The function to create the `func` wrapper. * @param {*} placeholder The placeholder value. * @param {*} [thisArg] The `this` binding of `func`. * @param {Array} [partials] The arguments to prepend to those provided to * the new function. * @param {Array} [holders] The `partials` placeholder indexes. * @param {Array} [argPos] The argument positions of the new function. * @param {number} [ary] The arity cap of `func`. * @param {number} [arity] The arity of `func`. * @returns {Function} Returns the new wrapped function. */ function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { var isCurry = bitmask & WRAP_CURRY_FLAG, newHolders = isCurry ? holders : undefined, newHoldersRight = isCurry ? undefined : holders, newPartials = isCurry ? partials : undefined, newPartialsRight = isCurry ? undefined : partials; bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); } var newData = [ func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, newHoldersRight, argPos, ary, arity ]; var result = wrapFunc.apply(undefined, newData); if (isLaziable(func)) { setData(result, newData); } result.placeholder = placeholder; return setWrapToString(result, func, bitmask); } /** * Creates a function like `_.round`. * * @private * @param {string} methodName The name of the `Math` method to use when rounding. * @returns {Function} Returns the new round function. */ function createRound(methodName) { var func = Math[methodName]; return function(number, precision) { number = toNumber(number); precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); if (precision) { // Shift with exponential notation to avoid floating-point issues. // See [MDN](https://mdn.io/round#Examples) for more details. var pair = (toString(number) + 'e').split('e'), value = func(pair[0] + 'e' + (+pair[1] + precision)); pair = (toString(value) + 'e').split('e'); return +(pair[0] + 'e' + (+pair[1] - precision)); } return func(number); }; } /** * Creates a set object of `values`. * * @private * @param {Array} values The values to add to the set. * @returns {Object} Returns the new set. */ var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { return new Set(values); }; /** * Creates a `_.toPairs` or `_.toPairsIn` function. * * @private * @param {Function} keysFunc The function to get the keys of a given object. * @returns {Function} Returns the new pairs function. */ function createToPairs(keysFunc) { return function(object) { var tag = getTag(object); if (tag == mapTag) { return mapToArray(object); } if (tag == setTag) { return setToPairs(object); } return baseToPairs(object, keysFunc(object)); }; } /** * Creates a function that either curries or invokes `func` with optional * `this` binding and partially applied arguments. * * @private * @param {Function|string} func The function or method name to wrap. * @param {number} bitmask The bitmask flags. * 1 - `_.bind` * 2 - `_.bindKey` * 4 - `_.curry` or `_.curryRight` of a bound function * 8 - `_.curry` * 16 - `_.curryRight` * 32 - `_.partial` * 64 - `_.partialRight` * 128 - `_.rearg` * 256 - `_.ary` * 512 - `_.flip` * @param {*} [thisArg] The `this` binding of `func`. * @param {Array} [partials] The arguments to be partially applied. * @param {Array} [holders] The `partials` placeholder indexes. * @param {Array} [argPos] The argument positions of the new function. * @param {number} [ary] The arity cap of `func`. * @param {number} [arity] The arity of `func`. * @returns {Function} Returns the new wrapped function. */ function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; if (!isBindKey && typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } var length = partials ? partials.length : 0; if (!length) { bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); partials = holders = undefined; } ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); arity = arity === undefined ? arity : toInteger(arity); length -= holders ? holders.length : 0; if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { var partialsRight = partials, holdersRight = holders; partials = holders = undefined; } var data = isBindKey ? undefined : getData(func); var newData = [ func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity ]; if (data) { mergeData(newData, data); } func = newData[0]; bitmask = newData[1]; thisArg = newData[2]; partials = newData[3]; holders = newData[4]; arity = newData[9] = newData[9] === undefined ? (isBindKey ? 0 : func.length) : nativeMax(newData[9] - length, 0); if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); } if (!bitmask || bitmask == WRAP_BIND_FLAG) { var result = createBind(func, bitmask, thisArg); } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { result = createCurry(func, bitmask, arity); } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { result = createPartial(func, bitmask, thisArg, partials); } else { result = createHybrid.apply(undefined, newData); } var setter = data ? baseSetData : setData; return setWrapToString(setter(result, newData), func, bitmask); } /** * Used by `_.defaults` to customize its `_.assignIn` use to assign properties * of source objects to the destination object for all destination properties * that resolve to `undefined`. * * @private * @param {*} objValue The destination value. * @param {*} srcValue The source value. * @param {string} key The key of the property to assign. * @param {Object} object The parent object of `objValue`. * @returns {*} Returns the value to assign. */ function customDefaultsAssignIn(objValue, srcValue, key, object) { if (objValue === undefined || (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { return srcValue; } return objValue; } /** * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source * objects into destination objects that are passed thru. * * @private * @param {*} objValue The destination value. * @param {*} srcValue The source value. * @param {string} key The key of the property to merge. * @param {Object} object The parent object of `objValue`. * @param {Object} source The parent object of `srcValue`. * @param {Object} [stack] Tracks traversed source values and their merged * counterparts. * @returns {*} Returns the value to assign. */ function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { if (isObject(objValue) && isObject(srcValue)) { // Recursively merge objects and arrays (susceptible to call stack limits). stack.set(srcValue, objValue); baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); stack['delete'](srcValue); } return objValue; } /** * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain * objects. * * @private * @param {*} value The value to inspect. * @param {string} key The key of the property to inspect. * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. */ function customOmitClone(value) { return isPlainObject(value) ? undefined : value; } /** * A specialized version of `baseIsEqualDeep` for arrays with support for * partial deep comparisons. * * @private * @param {Array} array The array to compare. * @param {Array} other The other array to compare. * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. * @param {Function} customizer The function to customize comparisons. * @param {Function} equalFunc The function to determine equivalents of values. * @param {Object} stack Tracks traversed `array` and `other` objects. * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. */ function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { var isPartial = bitmask & COMPARE_PARTIAL_FLAG, arrLength = array.length, othLength = other.length; if (arrLength != othLength && !(isPartial && othLength > arrLength)) { return false; } // Assume cyclic values are equal. var stacked = stack.get(array); if (stacked && stack.get(other)) { return stacked == other; } var index = -1, result = true, seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; stack.set(array, other); stack.set(other, array); // Ignore non-index properties. while (++index < arrLength) { var arrValue = array[index], othValue = other[index]; if (customizer) { var compared = isPartial ? customizer(othValue, arrValue, index, other, array, stack) : customizer(arrValue, othValue, index, array, other, stack); } if (compared !== undefined) { if (compared) { continue; } result = false; break; } // Recursively compare arrays (susceptible to call stack limits). if (seen) { if (!arraySome(other, function(othValue, othIndex) { if (!cacheHas(seen, othIndex) && (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { return seen.push(othIndex); } })) { result = false; break; } } else if (!( arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack) )) { result = false; break; } } stack['delete'](array); stack['delete'](other); return result; } /** * A specialized version of `baseIsEqualDeep` for comparing objects of * the same `toStringTag`. * * **Note:** This function only supports comparing values with tags of * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. * * @private * @param {Object} object The object to compare. * @param {Object} other The other object to compare. * @param {string} tag The `toStringTag` of the objects to compare. * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. * @param {Function} customizer The function to customize comparisons. * @param {Function} equalFunc The function to determine equivalents of values. * @param {Object} stack Tracks traversed `object` and `other` objects. * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. */ function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { switch (tag) { case dataViewTag: if ((object.byteLength != other.byteLength) || (object.byteOffset != other.byteOffset)) { return false; } object = object.buffer; other = other.buffer; case arrayBufferTag: if ((object.byteLength != other.byteLength) || !equalFunc(new Uint8Array(object), new Uint8Array(other))) { return false; } return true; case boolTag: case dateTag: case numberTag: // Coerce booleans to `1` or `0` and dates to milliseconds. // Invalid dates are coerced to `NaN`. return eq(+object, +other); case errorTag: return object.name == other.name && object.message == other.message; case regexpTag: case stringTag: // Coerce regexes to strings and treat strings, primitives and objects, // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring // for more details. return object == (other + ''); case mapTag: var convert = mapToArray; case setTag: var isPartial = bitmask & COMPARE_PARTIAL_FLAG; convert || (convert = setToArray); if (object.size != other.size && !isPartial) { return false; } // Assume cyclic values are equal. var stacked = stack.get(object); if (stacked) { return stacked == other; } bitmask |= COMPARE_UNORDERED_FLAG; // Recursively compare objects (susceptible to call stack limits). stack.set(object, other); var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); stack['delete'](object); return result; case symbolTag: if (symbolValueOf) { return symbolValueOf.call(object) == symbolValueOf.call(other); } } return false; } /** * A specialized version of `baseIsEqualDeep` for objects with support for * partial deep comparisons. * * @private * @param {Object} object The object to compare. * @param {Object} other The other object to compare. * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. * @param {Function} customizer The function to customize comparisons. * @param {Function} equalFunc The function to determine equivalents of values. * @param {Object} stack Tracks traversed `object` and `other` objects. * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. */ function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { var isPartial = bitmask & COMPARE_PARTIAL_FLAG, objProps = getAllKeys(object), objLength = objProps.length, othProps = getAllKeys(other), othLength = othProps.length; if (objLength != othLength && !isPartial) { return false; } var index = objLength; while (index--) { var key = objProps[index]; if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { return false; } } // Assume cyclic values are equal. var stacked = stack.get(object); if (stacked && stack.get(other)) { return stacked == other; } var result = true; stack.set(object, other); stack.set(other, object); var skipCtor = isPartial; while (++index < objLength) { key = objProps[index]; var objValue = object[key], othValue = other[key]; if (customizer) { var compared = isPartial ? customizer(othValue, objValue, key, other, object, stack) : customizer(objValue, othValue, key, object, other, stack); } // Recursively compare objects (susceptible to call stack limits). if (!(compared === undefined ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) : compared )) { result = false; break; } skipCtor || (skipCtor = key == 'constructor'); } if (result && !skipCtor) { var objCtor = object.constructor, othCtor = other.constructor; // Non `Object` object instances with different constructors are not equal. if (objCtor != othCtor && ('constructor' in object && 'constructor' in other) && !(typeof objCtor == 'function' && objCtor instanceof objCtor && typeof othCtor == 'function' && othCtor instanceof othCtor)) { result = false; } } stack['delete'](object); stack['delete'](other); return result; } /** * A specialized version of `baseRest` which flattens the rest array. * * @private * @param {Function} func The function to apply a rest parameter to. * @returns {Function} Returns the new function. */ function flatRest(func) { return setToString(overRest(func, undefined, flatten), func + ''); } /** * Creates an array of own enumerable property names and symbols of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names and symbols. */ function getAllKeys(object) { return baseGetAllKeys(object, keys, getSymbols); } /** * Creates an array of own and inherited enumerable property names and * symbols of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names and symbols. */ function getAllKeysIn(object) { return baseGetAllKeys(object, keysIn, getSymbolsIn); } /** * Gets metadata for `func`. * * @private * @param {Function} func The function to query. * @returns {*} Returns the metadata for `func`. */ var getData = !metaMap ? noop : function(func) { return metaMap.get(func); }; /** * Gets the name of `func`. * * @private * @param {Function} func The function to query. * @returns {string} Returns the function name. */ function getFuncName(func) { var result = (func.name + ''), array = realNames[result], length = hasOwnProperty.call(realNames, result) ? array.length : 0; while (length--) { var data = array[length], otherFunc = data.func; if (otherFunc == null || otherFunc == func) { return data.name; } } return result; } /** * Gets the argument placeholder value for `func`. * * @private * @param {Function} func The function to inspect. * @returns {*} Returns the placeholder value. */ function getHolder(func) { var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; return object.placeholder; } /** * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, * this function returns the custom method, otherwise it returns `baseIteratee`. * If arguments are provided, the chosen function is invoked with them and * its result is returned. * * @private * @param {*} [value] The value to convert to an iteratee. * @param {number} [arity] The arity of the created iteratee. * @returns {Function} Returns the chosen function or its result. */ function getIteratee() { var result = lodash.iteratee || iteratee; result = result === iteratee ? baseIteratee : result; return arguments.length ? result(arguments[0], arguments[1]) : result; } /** * Gets the data for `map`. * * @private * @param {Object} map The map to query. * @param {string} key The reference key. * @returns {*} Returns the map data. */ function getMapData(map, key) { var data = map.__data__; return isKeyable(key) ? data[typeof key == 'string' ? 'string' : 'hash'] : data.map; } /** * Gets the property names, values, and compare flags of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the match data of `object`. */ function getMatchData(object) { var result = keys(object), length = result.length; while (length--) { var key = result[length], value = object[key]; result[length] = [key, value, isStrictComparable(value)]; } return result; } /** * Gets the native function at `key` of `object`. * * @private * @param {Object} object The object to query. * @param {string} key The key of the method to get. * @returns {*} Returns the function if it's native, else `undefined`. */ function getNative(object, key) { var value = getValue(object, key); return baseIsNative(value) ? value : undefined; } /** * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. * * @private * @param {*} value The value to query. * @returns {string} Returns the raw `toStringTag`. */ function getRawTag(value) { var isOwn = hasOwnProperty.call(value, symToStringTag), tag = value[symToStringTag]; try { value[symToStringTag] = undefined; var unmasked = true; } catch (e) {} var result = nativeObjectToString.call(value); if (unmasked) { if (isOwn) { value[symToStringTag] = tag; } else { delete value[symToStringTag]; } } return result; } /** * Creates an array of the own enumerable symbols of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of symbols. */ var getSymbols = !nativeGetSymbols ? stubArray : function(object) { if (object == null) { return []; } object = Object(object); return arrayFilter(nativeGetSymbols(object), function(symbol) { return propertyIsEnumerable.call(object, symbol); }); }; /** * Creates an array of the own and inherited enumerable symbols of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of symbols. */ var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { var result = []; while (object) { arrayPush(result, getSymbols(object)); object = getPrototype(object); } return result; }; /** * Gets the `toStringTag` of `value`. * * @private * @param {*} value The value to query. * @returns {string} Returns the `toStringTag`. */ var getTag = baseGetTag; // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || (Map && getTag(new Map) != mapTag) || (Promise && getTag(Promise.resolve()) != promiseTag) || (Set && getTag(new Set) != setTag) || (WeakMap && getTag(new WeakMap) != weakMapTag)) { getTag = function(value) { var result = baseGetTag(value), Ctor = result == objectTag ? value.constructor : undefined, ctorString = Ctor ? toSource(Ctor) : ''; if (ctorString) { switch (ctorString) { case dataViewCtorString: return dataViewTag; case mapCtorString: return mapTag; case promiseCtorString: return promiseTag; case setCtorString: return setTag; case weakMapCtorString: return weakMapTag; } } return result; }; } /** * Gets the view, applying any `transforms` to the `start` and `end` positions. * * @private * @param {number} start The start of the view. * @param {number} end The end of the view. * @param {Array} transforms The transformations to apply to the view. * @returns {Object} Returns an object containing the `start` and `end` * positions of the view. */ function getView(start, end, transforms) { var index = -1, length = transforms.length; while (++index < length) { var data = transforms[index], size = data.size; switch (data.type) { case 'drop': start += size; break; case 'dropRight': end -= size; break; case 'take': end = nativeMin(end, start + size); break; case 'takeRight': start = nativeMax(start, end - size); break; } } return { 'start': start, 'end': end }; } /** * Extracts wrapper details from the `source` body comment. * * @private * @param {string} source The source to inspect. * @returns {Array} Returns the wrapper details. */ function getWrapDetails(source) { var match = source.match(reWrapDetails); return match ? match[1].split(reSplitDetails) : []; } /** * Checks if `path` exists on `object`. * * @private * @param {Object} object The object to query. * @param {Array|string} path The path to check. * @param {Function} hasFunc The function to check properties. * @returns {boolean} Returns `true` if `path` exists, else `false`. */ function hasPath(object, path, hasFunc) { path = castPath(path, object); var index = -1, length = path.length, result = false; while (++index < length) { var key = toKey(path[index]); if (!(result = object != null && hasFunc(object, key))) { break; } object = object[key]; } if (result || ++index != length) { return result; } length = object == null ? 0 : object.length; return !!length && isLength(length) && isIndex(key, length) && (isArray(object) || isArguments(object)); } /** * Initializes an array clone. * * @private * @param {Array} array The array to clone. * @returns {Array} Returns the initialized clone. */ function initCloneArray(array) { var length = array.length, result = new array.constructor(length); // Add properties assigned by `RegExp#exec`. if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { result.index = array.index; result.input = array.input; } return result; } /** * Initializes an object clone. * * @private * @param {Object} object The object to clone. * @returns {Object} Returns the initialized clone. */ function initCloneObject(object) { return (typeof object.constructor == 'function' && !isPrototype(object)) ? baseCreate(getPrototype(object)) : {}; } /** * Initializes an object clone based on its `toStringTag`. * * **Note:** This function only supports cloning values with tags of * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. * * @private * @param {Object} object The object to clone. * @param {string} tag The `toStringTag` of the object to clone. * @param {boolean} [isDeep] Specify a deep clone. * @returns {Object} Returns the initialized clone. */ function initCloneByTag(object, tag, isDeep) { var Ctor = object.constructor; switch (tag) { case arrayBufferTag: return cloneArrayBuffer(object); case boolTag: case dateTag: return new Ctor(+object); case dataViewTag: return cloneDataView(object, isDeep); case float32Tag: case float64Tag: case int8Tag: case int16Tag: case int32Tag: case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: return cloneTypedArray(object, isDeep); case mapTag: return new Ctor; case numberTag: case stringTag: return new Ctor(object); case regexpTag: return cloneRegExp(object); case setTag: return new Ctor; case symbolTag: return cloneSymbol(object); } } /** * Inserts wrapper `details` in a comment at the top of the `source` body. * * @private * @param {string} source The source to modify. * @returns {Array} details The details to insert. * @returns {string} Returns the modified source. */ function insertWrapDetails(source, details) { var length = details.length; if (!length) { return source; } var lastIndex = length - 1; details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; details = details.join(length > 2 ? ', ' : ' '); return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); } /** * Checks if `value` is a flattenable `arguments` object or array. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. */ function isFlattenable(value) { return isArray(value) || isArguments(value) || !!(spreadableSymbol && value && value[spreadableSymbol]); } /** * Checks if `value` is a valid array-like index. * * @private * @param {*} value The value to check. * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. */ function isIndex(value, length) { var type = typeof value; length = length == null ? MAX_SAFE_INTEGER : length; return !!length && (type == 'number' || (type != 'symbol' && reIsUint.test(value))) && (value > -1 && value % 1 == 0 && value < length); } /** * Checks if the given arguments are from an iteratee call. * * @private * @param {*} value The potential iteratee value argument. * @param {*} index The potential iteratee index or key argument. * @param {*} object The potential iteratee object argument. * @returns {boolean} Returns `true` if the arguments are from an iteratee call, * else `false`. */ function isIterateeCall(value, index, object) { if (!isObject(object)) { return false; } var type = typeof index; if (type == 'number' ? (isArrayLike(object) && isIndex(index, object.length)) : (type == 'string' && index in object) ) { return eq(object[index], value); } return false; } /** * Checks if `value` is a property name and not a property path. * * @private * @param {*} value The value to check. * @param {Object} [object] The object to query keys on. * @returns {boolean} Returns `true` if `value` is a property name, else `false`. */ function isKey(value, object) { if (isArray(value)) { return false; } var type = typeof value; if (type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol(value)) { return true; } return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || (object != null && value in Object(object)); } /** * Checks if `value` is suitable for use as unique object key. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is suitable, else `false`. */ function isKeyable(value) { var type = typeof value; return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') ? (value !== '__proto__') : (value === null); } /** * Checks if `func` has a lazy counterpart. * * @private * @param {Function} func The function to check. * @returns {boolean} Returns `true` if `func` has a lazy counterpart, * else `false`. */ function isLaziable(func) { var funcName = getFuncName(func), other = lodash[funcName]; if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { return false; } if (func === other) { return true; } var data = getData(other); return !!data && func === data[0]; } /** * Checks if `func` has its source masked. * * @private * @param {Function} func The function to check. * @returns {boolean} Returns `true` if `func` is masked, else `false`. */ function isMasked(func) { return !!maskSrcKey && (maskSrcKey in func); } /** * Checks if `func` is capable of being masked. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `func` is maskable, else `false`. */ var isMaskable = coreJsData ? isFunction : stubFalse; /** * Checks if `value` is likely a prototype object. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. */ function isPrototype(value) { var Ctor = value && value.constructor, proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; return value === proto; } /** * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` if suitable for strict * equality comparisons, else `false`. */ function isStrictComparable(value) { return value === value && !isObject(value); } /** * A specialized version of `matchesProperty` for source values suitable * for strict equality comparisons, i.e. `===`. * * @private * @param {string} key The key of the property to get. * @param {*} srcValue The value to match. * @returns {Function} Returns the new spec function. */ function matchesStrictComparable(key, srcValue) { return function(object) { if (object == null) { return false; } return object[key] === srcValue && (srcValue !== undefined || (key in Object(object))); }; } /** * A specialized version of `_.memoize` which clears the memoized function's * cache when it exceeds `MAX_MEMOIZE_SIZE`. * * @private * @param {Function} func The function to have its output memoized. * @returns {Function} Returns the new memoized function. */ function memoizeCapped(func) { var result = memoize(func, function(key) { if (cache.size === MAX_MEMOIZE_SIZE) { cache.clear(); } return key; }); var cache = result.cache; return result; } /** * Merges the function metadata of `source` into `data`. * * Merging metadata reduces the number of wrappers used to invoke a function. * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` * may be applied regardless of execution order. Methods like `_.ary` and * `_.rearg` modify function arguments, making the order in which they are * executed important, preventing the merging of metadata. However, we make * an exception for a safe combined case where curried functions have `_.ary` * and or `_.rearg` applied. * * @private * @param {Array} data The destination metadata. * @param {Array} source The source metadata. * @returns {Array} Returns `data`. */ function mergeData(data, source) { var bitmask = data[1], srcBitmask = source[1], newBitmask = bitmask | srcBitmask, isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); var isCombo = ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); // Exit early if metadata can't be merged. if (!(isCommon || isCombo)) { return data; } // Use source `thisArg` if available. if (srcBitmask & WRAP_BIND_FLAG) { data[2] = source[2]; // Set when currying a bound function. newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; } // Compose partial arguments. var value = source[3]; if (value) { var partials = data[3]; data[3] = partials ? composeArgs(partials, value, source[4]) : value; data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; } // Compose partial right arguments. value = source[5]; if (value) { partials = data[5]; data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; } // Use source `argPos` if available. value = source[7]; if (value) { data[7] = value; } // Use source `ary` if it's smaller. if (srcBitmask & WRAP_ARY_FLAG) { data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); } // Use source `arity` if one is not provided. if (data[9] == null) { data[9] = source[9]; } // Use source `func` and merge bitmasks. data[0] = source[0]; data[1] = newBitmask; return data; } /** * This function is like * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) * except that it includes inherited enumerable properties. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names. */ function nativeKeysIn(object) { var result = []; if (object != null) { for (var key in Object(object)) { result.push(key); } } return result; } /** * Converts `value` to a string using `Object.prototype.toString`. * * @private * @param {*} value The value to convert. * @returns {string} Returns the converted string. */ function objectToString(value) { return nativeObjectToString.call(value); } /** * A specialized version of `baseRest` which transforms the rest array. * * @private * @param {Function} func The function to apply a rest parameter to. * @param {number} [start=func.length-1] The start position of the rest parameter. * @param {Function} transform The rest array transform. * @returns {Function} Returns the new function. */ function overRest(func, start, transform) { start = nativeMax(start === undefined ? (func.length - 1) : start, 0); return function() { var args = arguments, index = -1, length = nativeMax(args.length - start, 0), array = Array(length); while (++index < length) { array[index] = args[start + index]; } index = -1; var otherArgs = Array(start + 1); while (++index < start) { otherArgs[index] = args[index]; } otherArgs[start] = transform(array); return apply(func, this, otherArgs); }; } /** * Gets the parent value at `path` of `object`. * * @private * @param {Object} object The object to query. * @param {Array} path The path to get the parent value of. * @returns {*} Returns the parent value. */ function parent(object, path) { return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); } /** * Reorder `array` according to the specified indexes where the element at * the first index is assigned as the first element, the element at * the second index is assigned as the second element, and so on. * * @private * @param {Array} array The array to reorder. * @param {Array} indexes The arranged array indexes. * @returns {Array} Returns `array`. */ function reorder(array, indexes) { var arrLength = array.length, length = nativeMin(indexes.length, arrLength), oldArray = copyArray(array); while (length--) { var index = indexes[length]; array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; } return array; } /** * Gets the value at `key`, unless `key` is "__proto__". * * @private * @param {Object} object The object to query. * @param {string} key The key of the property to get. * @returns {*} Returns the property value. */ function safeGet(object, key) { if (key == '__proto__') { return; } return object[key]; } /** * Sets metadata for `func`. * * **Note:** If this function becomes hot, i.e. is invoked a lot in a short * period of time, it will trip its breaker and transition to an identity * function to avoid garbage collection pauses in V8. See * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) * for more details. * * @private * @param {Function} func The function to associate metadata with. * @param {*} data The metadata. * @returns {Function} Returns `func`. */ var setData = shortOut(baseSetData); /** * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). * * @private * @param {Function} func The function to delay. * @param {number} wait The number of milliseconds to delay invocation. * @returns {number|Object} Returns the timer id or timeout object. */ var setTimeout = ctxSetTimeout || function(func, wait) { return root.setTimeout(func, wait); }; /** * Sets the `toString` method of `func` to return `string`. * * @private * @param {Function} func The function to modify. * @param {Function} string The `toString` result. * @returns {Function} Returns `func`. */ var setToString = shortOut(baseSetToString); /** * Sets the `toString` method of `wrapper` to mimic the source of `reference` * with wrapper details in a comment at the top of the source body. * * @private * @param {Function} wrapper The function to modify. * @param {Function} reference The reference function. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @returns {Function} Returns `wrapper`. */ function setWrapToString(wrapper, reference, bitmask) { var source = (reference + ''); return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); } /** * Creates a function that'll short out and invoke `identity` instead * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` * milliseconds. * * @private * @param {Function} func The function to restrict. * @returns {Function} Returns the new shortable function. */ function shortOut(func) { var count = 0, lastCalled = 0; return function() { var stamp = nativeNow(), remaining = HOT_SPAN - (stamp - lastCalled); lastCalled = stamp; if (remaining > 0) { if (++count >= HOT_COUNT) { return arguments[0]; } } else { count = 0; } return func.apply(undefined, arguments); }; } /** * A specialized version of `_.shuffle` which mutates and sets the size of `array`. * * @private * @param {Array} array The array to shuffle. * @param {number} [size=array.length] The size of `array`. * @returns {Array} Returns `array`. */ function shuffleSelf(array, size) { var index = -1, length = array.length, lastIndex = length - 1; size = size === undefined ? length : size; while (++index < size) { var rand = baseRandom(index, lastIndex), value = array[rand]; array[rand] = array[index]; array[index] = value; } array.length = size; return array; } /** * Converts `string` to a property path array. * * @private * @param {string} string The string to convert. * @returns {Array} Returns the property path array. */ var stringToPath = memoizeCapped(function(string) { var result = []; if (string.charCodeAt(0) === 46 /* . */) { result.push(''); } string.replace(rePropName, function(match, number, quote, subString) { result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); return result; }); /** * Converts `value` to a string key if it's not a string or symbol. * * @private * @param {*} value The value to inspect. * @returns {string|symbol} Returns the key. */ function toKey(value) { if (typeof value == 'string' || isSymbol(value)) { return value; } var result = (value + ''); return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; } /** * Converts `func` to its source code. * * @private * @param {Function} func The function to convert. * @returns {string} Returns the source code. */ function toSource(func) { if (func != null) { try { return funcToString.call(func); } catch (e) {} try { return (func + ''); } catch (e) {} } return ''; } /** * Updates wrapper `details` based on `bitmask` flags. * * @private * @returns {Array} details The details to modify. * @param {number} bitmask The bitmask flags. See `createWrap` for more details. * @returns {Array} Returns `details`. */ function updateWrapDetails(details, bitmask) { arrayEach(wrapFlags, function(pair) { var value = '_.' + pair[0]; if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { details.push(value); } }); return details.sort(); } /** * Creates a clone of `wrapper`. * * @private * @param {Object} wrapper The wrapper to clone. * @returns {Object} Returns the cloned wrapper. */ function wrapperClone(wrapper) { if (wrapper instanceof LazyWrapper) { return wrapper.clone(); } var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); result.__actions__ = copyArray(wrapper.__actions__); result.__index__ = wrapper.__index__; result.__values__ = wrapper.__values__; return result; } /*------------------------------------------------------------------------*/ /** * Creates an array of elements split into groups the length of `size`. * If `array` can't be split evenly, the final chunk will be the remaining * elements. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to process. * @param {number} [size=1] The length of each chunk * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the new array of chunks. * @example * * _.chunk(['a', 'b', 'c', 'd'], 2); * // => [['a', 'b'], ['c', 'd']] * * _.chunk(['a', 'b', 'c', 'd'], 3); * // => [['a', 'b', 'c'], ['d']] */ function chunk(array, size, guard) { if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { size = 1; } else { size = nativeMax(toInteger(size), 0); } var length = array == null ? 0 : array.length; if (!length || size < 1) { return []; } var index = 0, resIndex = 0, result = Array(nativeCeil(length / size)); while (index < length) { result[resIndex++] = baseSlice(array, index, (index += size)); } return result; } /** * Creates an array with all falsey values removed. The values `false`, `null`, * `0`, `""`, `undefined`, and `NaN` are falsey. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to compact. * @returns {Array} Returns the new array of filtered values. * @example * * _.compact([0, 1, false, 2, '', 3]); * // => [1, 2, 3] */ function compact(array) { var index = -1, length = array == null ? 0 : array.length, resIndex = 0, result = []; while (++index < length) { var value = array[index]; if (value) { result[resIndex++] = value; } } return result; } /** * Creates a new array concatenating `array` with any additional arrays * and/or values. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to concatenate. * @param {...*} [values] The values to concatenate. * @returns {Array} Returns the new concatenated array. * @example * * var array = [1]; * var other = _.concat(array, 2, [3], [[4]]); * * console.log(other); * // => [1, 2, 3, [4]] * * console.log(array); * // => [1] */ function concat() { var length = arguments.length; if (!length) { return []; } var args = Array(length - 1), array = arguments[0], index = length; while (index--) { args[index - 1] = arguments[index]; } return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); } /** * Creates an array of `array` values not included in the other given arrays * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. The order and references of result values are * determined by the first array. * * **Note:** Unlike `_.pullAll`, this method returns a new array. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to inspect. * @param {...Array} [values] The values to exclude. * @returns {Array} Returns the new array of filtered values. * @see _.without, _.xor * @example * * _.difference([2, 1], [2, 3]); * // => [1] */ var difference = baseRest(function(array, values) { return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) : []; }); /** * This method is like `_.difference` except that it accepts `iteratee` which * is invoked for each element of `array` and `values` to generate the criterion * by which they're compared. The order and references of result values are * determined by the first array. The iteratee is invoked with one argument: * (value). * * **Note:** Unlike `_.pullAllBy`, this method returns a new array. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {...Array} [values] The values to exclude. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new array of filtered values. * @example * * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); * // => [1.2] * * // The `_.property` iteratee shorthand. * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); * // => [{ 'x': 2 }] */ var differenceBy = baseRest(function(array, values) { var iteratee = last(values); if (isArrayLikeObject(iteratee)) { iteratee = undefined; } return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) : []; }); /** * This method is like `_.difference` except that it accepts `comparator` * which is invoked to compare elements of `array` to `values`. The order and * references of result values are determined by the first array. The comparator * is invoked with two arguments: (arrVal, othVal). * * **Note:** Unlike `_.pullAllWith`, this method returns a new array. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {...Array} [values] The values to exclude. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of filtered values. * @example * * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; * * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); * // => [{ 'x': 2, 'y': 1 }] */ var differenceWith = baseRest(function(array, values) { var comparator = last(values); if (isArrayLikeObject(comparator)) { comparator = undefined; } return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) : []; }); /** * Creates a slice of `array` with `n` elements dropped from the beginning. * * @static * @memberOf _ * @since 0.5.0 * @category Array * @param {Array} array The array to query. * @param {number} [n=1] The number of elements to drop. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the slice of `array`. * @example * * _.drop([1, 2, 3]); * // => [2, 3] * * _.drop([1, 2, 3], 2); * // => [3] * * _.drop([1, 2, 3], 5); * // => [] * * _.drop([1, 2, 3], 0); * // => [1, 2, 3] */ function drop(array, n, guard) { var length = array == null ? 0 : array.length; if (!length) { return []; } n = (guard || n === undefined) ? 1 : toInteger(n); return baseSlice(array, n < 0 ? 0 : n, length); } /** * Creates a slice of `array` with `n` elements dropped from the end. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {number} [n=1] The number of elements to drop. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the slice of `array`. * @example * * _.dropRight([1, 2, 3]); * // => [1, 2] * * _.dropRight([1, 2, 3], 2); * // => [1] * * _.dropRight([1, 2, 3], 5); * // => [] * * _.dropRight([1, 2, 3], 0); * // => [1, 2, 3] */ function dropRight(array, n, guard) { var length = array == null ? 0 : array.length; if (!length) { return []; } n = (guard || n === undefined) ? 1 : toInteger(n); n = length - n; return baseSlice(array, 0, n < 0 ? 0 : n); } /** * Creates a slice of `array` excluding elements dropped from the end. * Elements are dropped until `predicate` returns falsey. The predicate is * invoked with three arguments: (value, index, array). * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the slice of `array`. * @example * * var users = [ * { 'user': 'barney', 'active': true }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': false } * ]; * * _.dropRightWhile(users, function(o) { return !o.active; }); * // => objects for ['barney'] * * // The `_.matches` iteratee shorthand. * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); * // => objects for ['barney', 'fred'] * * // The `_.matchesProperty` iteratee shorthand. * _.dropRightWhile(users, ['active', false]); * // => objects for ['barney'] * * // The `_.property` iteratee shorthand. * _.dropRightWhile(users, 'active'); * // => objects for ['barney', 'fred', 'pebbles'] */ function dropRightWhile(array, predicate) { return (array && array.length) ? baseWhile(array, getIteratee(predicate, 3), true, true) : []; } /** * Creates a slice of `array` excluding elements dropped from the beginning. * Elements are dropped until `predicate` returns falsey. The predicate is * invoked with three arguments: (value, index, array). * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the slice of `array`. * @example * * var users = [ * { 'user': 'barney', 'active': false }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': true } * ]; * * _.dropWhile(users, function(o) { return !o.active; }); * // => objects for ['pebbles'] * * // The `_.matches` iteratee shorthand. * _.dropWhile(users, { 'user': 'barney', 'active': false }); * // => objects for ['fred', 'pebbles'] * * // The `_.matchesProperty` iteratee shorthand. * _.dropWhile(users, ['active', false]); * // => objects for ['pebbles'] * * // The `_.property` iteratee shorthand. * _.dropWhile(users, 'active'); * // => objects for ['barney', 'fred', 'pebbles'] */ function dropWhile(array, predicate) { return (array && array.length) ? baseWhile(array, getIteratee(predicate, 3), true) : []; } /** * Fills elements of `array` with `value` from `start` up to, but not * including, `end`. * * **Note:** This method mutates `array`. * * @static * @memberOf _ * @since 3.2.0 * @category Array * @param {Array} array The array to fill. * @param {*} value The value to fill `array` with. * @param {number} [start=0] The start position. * @param {number} [end=array.length] The end position. * @returns {Array} Returns `array`. * @example * * var array = [1, 2, 3]; * * _.fill(array, 'a'); * console.log(array); * // => ['a', 'a', 'a'] * * _.fill(Array(3), 2); * // => [2, 2, 2] * * _.fill([4, 6, 8, 10], '*', 1, 3); * // => [4, '*', '*', 10] */ function fill(array, value, start, end) { var length = array == null ? 0 : array.length; if (!length) { return []; } if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { start = 0; end = length; } return baseFill(array, value, start, end); } /** * This method is like `_.find` except that it returns the index of the first * element `predicate` returns truthy for instead of the element itself. * * @static * @memberOf _ * @since 1.1.0 * @category Array * @param {Array} array The array to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param {number} [fromIndex=0] The index to search from. * @returns {number} Returns the index of the found element, else `-1`. * @example * * var users = [ * { 'user': 'barney', 'active': false }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': true } * ]; * * _.findIndex(users, function(o) { return o.user == 'barney'; }); * // => 0 * * // The `_.matches` iteratee shorthand. * _.findIndex(users, { 'user': 'fred', 'active': false }); * // => 1 * * // The `_.matchesProperty` iteratee shorthand. * _.findIndex(users, ['active', false]); * // => 0 * * // The `_.property` iteratee shorthand. * _.findIndex(users, 'active'); * // => 2 */ function findIndex(array, predicate, fromIndex) { var length = array == null ? 0 : array.length; if (!length) { return -1; } var index = fromIndex == null ? 0 : toInteger(fromIndex); if (index < 0) { index = nativeMax(length + index, 0); } return baseFindIndex(array, getIteratee(predicate, 3), index); } /** * This method is like `_.findIndex` except that it iterates over elements * of `collection` from right to left. * * @static * @memberOf _ * @since 2.0.0 * @category Array * @param {Array} array The array to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param {number} [fromIndex=array.length-1] The index to search from. * @returns {number} Returns the index of the found element, else `-1`. * @example * * var users = [ * { 'user': 'barney', 'active': true }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': false } * ]; * * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); * // => 2 * * // The `_.matches` iteratee shorthand. * _.findLastIndex(users, { 'user': 'barney', 'active': true }); * // => 0 * * // The `_.matchesProperty` iteratee shorthand. * _.findLastIndex(users, ['active', false]); * // => 2 * * // The `_.property` iteratee shorthand. * _.findLastIndex(users, 'active'); * // => 0 */ function findLastIndex(array, predicate, fromIndex) { var length = array == null ? 0 : array.length; if (!length) { return -1; } var index = length - 1; if (fromIndex !== undefined) { index = toInteger(fromIndex); index = fromIndex < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); } return baseFindIndex(array, getIteratee(predicate, 3), index, true); } /** * Flattens `array` a single level deep. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to flatten. * @returns {Array} Returns the new flattened array. * @example * * _.flatten([1, [2, [3, [4]], 5]]); * // => [1, 2, [3, [4]], 5] */ function flatten(array) { var length = array == null ? 0 : array.length; return length ? baseFlatten(array, 1) : []; } /** * Recursively flattens `array`. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to flatten. * @returns {Array} Returns the new flattened array. * @example * * _.flattenDeep([1, [2, [3, [4]], 5]]); * // => [1, 2, 3, 4, 5] */ function flattenDeep(array) { var length = array == null ? 0 : array.length; return length ? baseFlatten(array, INFINITY) : []; } /** * Recursively flatten `array` up to `depth` times. * * @static * @memberOf _ * @since 4.4.0 * @category Array * @param {Array} array The array to flatten. * @param {number} [depth=1] The maximum recursion depth. * @returns {Array} Returns the new flattened array. * @example * * var array = [1, [2, [3, [4]], 5]]; * * _.flattenDepth(array, 1); * // => [1, 2, [3, [4]], 5] * * _.flattenDepth(array, 2); * // => [1, 2, 3, [4], 5] */ function flattenDepth(array, depth) { var length = array == null ? 0 : array.length; if (!length) { return []; } depth = depth === undefined ? 1 : toInteger(depth); return baseFlatten(array, depth); } /** * The inverse of `_.toPairs`; this method returns an object composed * from key-value `pairs`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} pairs The key-value pairs. * @returns {Object} Returns the new object. * @example * * _.fromPairs([['a', 1], ['b', 2]]); * // => { 'a': 1, 'b': 2 } */ function fromPairs(pairs) { var index = -1, length = pairs == null ? 0 : pairs.length, result = {}; while (++index < length) { var pair = pairs[index]; result[pair[0]] = pair[1]; } return result; } /** * Gets the first element of `array`. * * @static * @memberOf _ * @since 0.1.0 * @alias first * @category Array * @param {Array} array The array to query. * @returns {*} Returns the first element of `array`. * @example * * _.head([1, 2, 3]); * // => 1 * * _.head([]); * // => undefined */ function head(array) { return (array && array.length) ? array[0] : undefined; } /** * Gets the index at which the first occurrence of `value` is found in `array` * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. If `fromIndex` is negative, it's used as the * offset from the end of `array`. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=0] The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. * @example * * _.indexOf([1, 2, 1, 2], 2); * // => 1 * * // Search from the `fromIndex`. * _.indexOf([1, 2, 1, 2], 2, 2); * // => 3 */ function indexOf(array, value, fromIndex) { var length = array == null ? 0 : array.length; if (!length) { return -1; } var index = fromIndex == null ? 0 : toInteger(fromIndex); if (index < 0) { index = nativeMax(length + index, 0); } return baseIndexOf(array, value, index); } /** * Gets all but the last element of `array`. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to query. * @returns {Array} Returns the slice of `array`. * @example * * _.initial([1, 2, 3]); * // => [1, 2] */ function initial(array) { var length = array == null ? 0 : array.length; return length ? baseSlice(array, 0, -1) : []; } /** * Creates an array of unique values that are included in all given arrays * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. The order and references of result values are * determined by the first array. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @returns {Array} Returns the new array of intersecting values. * @example * * _.intersection([2, 1], [2, 3]); * // => [2] */ var intersection = baseRest(function(arrays) { var mapped = arrayMap(arrays, castArrayLikeObject); return (mapped.length && mapped[0] === arrays[0]) ? baseIntersection(mapped) : []; }); /** * This method is like `_.intersection` except that it accepts `iteratee` * which is invoked for each element of each `arrays` to generate the criterion * by which they're compared. The order and references of result values are * determined by the first array. The iteratee is invoked with one argument: * (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new array of intersecting values. * @example * * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); * // => [2.1] * * // The `_.property` iteratee shorthand. * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); * // => [{ 'x': 1 }] */ var intersectionBy = baseRest(function(arrays) { var iteratee = last(arrays), mapped = arrayMap(arrays, castArrayLikeObject); if (iteratee === last(mapped)) { iteratee = undefined; } else { mapped.pop(); } return (mapped.length && mapped[0] === arrays[0]) ? baseIntersection(mapped, getIteratee(iteratee, 2)) : []; }); /** * This method is like `_.intersection` except that it accepts `comparator` * which is invoked to compare elements of `arrays`. The order and references * of result values are determined by the first array. The comparator is * invoked with two arguments: (arrVal, othVal). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of intersecting values. * @example * * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; * * _.intersectionWith(objects, others, _.isEqual); * // => [{ 'x': 1, 'y': 2 }] */ var intersectionWith = baseRest(function(arrays) { var comparator = last(arrays), mapped = arrayMap(arrays, castArrayLikeObject); comparator = typeof comparator == 'function' ? comparator : undefined; if (comparator) { mapped.pop(); } return (mapped.length && mapped[0] === arrays[0]) ? baseIntersection(mapped, undefined, comparator) : []; }); /** * Converts all elements in `array` into a string separated by `separator`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to convert. * @param {string} [separator=','] The element separator. * @returns {string} Returns the joined string. * @example * * _.join(['a', 'b', 'c'], '~'); * // => 'a~b~c' */ function join(array, separator) { return array == null ? '' : nativeJoin.call(array, separator); } /** * Gets the last element of `array`. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to query. * @returns {*} Returns the last element of `array`. * @example * * _.last([1, 2, 3]); * // => 3 */ function last(array) { var length = array == null ? 0 : array.length; return length ? array[length - 1] : undefined; } /** * This method is like `_.indexOf` except that it iterates over elements of * `array` from right to left. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=array.length-1] The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. * @example * * _.lastIndexOf([1, 2, 1, 2], 2); * // => 3 * * // Search from the `fromIndex`. * _.lastIndexOf([1, 2, 1, 2], 2, 2); * // => 1 */ function lastIndexOf(array, value, fromIndex) { var length = array == null ? 0 : array.length; if (!length) { return -1; } var index = length; if (fromIndex !== undefined) { index = toInteger(fromIndex); index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); } return value === value ? strictLastIndexOf(array, value, index) : baseFindIndex(array, baseIsNaN, index, true); } /** * Gets the element at index `n` of `array`. If `n` is negative, the nth * element from the end is returned. * * @static * @memberOf _ * @since 4.11.0 * @category Array * @param {Array} array The array to query. * @param {number} [n=0] The index of the element to return. * @returns {*} Returns the nth element of `array`. * @example * * var array = ['a', 'b', 'c', 'd']; * * _.nth(array, 1); * // => 'b' * * _.nth(array, -2); * // => 'c'; */ function nth(array, n) { return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; } /** * Removes all given values from `array` using * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. * * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` * to remove elements from an array by predicate. * * @static * @memberOf _ * @since 2.0.0 * @category Array * @param {Array} array The array to modify. * @param {...*} [values] The values to remove. * @returns {Array} Returns `array`. * @example * * var array = ['a', 'b', 'c', 'a', 'b', 'c']; * * _.pull(array, 'a', 'c'); * console.log(array); * // => ['b', 'b'] */ var pull = baseRest(pullAll); /** * This method is like `_.pull` except that it accepts an array of values to remove. * * **Note:** Unlike `_.difference`, this method mutates `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to modify. * @param {Array} values The values to remove. * @returns {Array} Returns `array`. * @example * * var array = ['a', 'b', 'c', 'a', 'b', 'c']; * * _.pullAll(array, ['a', 'c']); * console.log(array); * // => ['b', 'b'] */ function pullAll(array, values) { return (array && array.length && values && values.length) ? basePullAll(array, values) : array; } /** * This method is like `_.pullAll` except that it accepts `iteratee` which is * invoked for each element of `array` and `values` to generate the criterion * by which they're compared. The iteratee is invoked with one argument: (value). * * **Note:** Unlike `_.differenceBy`, this method mutates `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to modify. * @param {Array} values The values to remove. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns `array`. * @example * * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; * * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); * console.log(array); * // => [{ 'x': 2 }] */ function pullAllBy(array, values, iteratee) { return (array && array.length && values && values.length) ? basePullAll(array, values, getIteratee(iteratee, 2)) : array; } /** * This method is like `_.pullAll` except that it accepts `comparator` which * is invoked to compare elements of `array` to `values`. The comparator is * invoked with two arguments: (arrVal, othVal). * * **Note:** Unlike `_.differenceWith`, this method mutates `array`. * * @static * @memberOf _ * @since 4.6.0 * @category Array * @param {Array} array The array to modify. * @param {Array} values The values to remove. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns `array`. * @example * * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; * * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); * console.log(array); * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] */ function pullAllWith(array, values, comparator) { return (array && array.length && values && values.length) ? basePullAll(array, values, undefined, comparator) : array; } /** * Removes elements from `array` corresponding to `indexes` and returns an * array of removed elements. * * **Note:** Unlike `_.at`, this method mutates `array`. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to modify. * @param {...(number|number[])} [indexes] The indexes of elements to remove. * @returns {Array} Returns the new array of removed elements. * @example * * var array = ['a', 'b', 'c', 'd']; * var pulled = _.pullAt(array, [1, 3]); * * console.log(array); * // => ['a', 'c'] * * console.log(pulled); * // => ['b', 'd'] */ var pullAt = flatRest(function(array, indexes) { var length = array == null ? 0 : array.length, result = baseAt(array, indexes); basePullAt(array, arrayMap(indexes, function(index) { return isIndex(index, length) ? +index : index; }).sort(compareAscending)); return result; }); /** * Removes all elements from `array` that `predicate` returns truthy for * and returns an array of the removed elements. The predicate is invoked * with three arguments: (value, index, array). * * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` * to pull elements from an array by value. * * @static * @memberOf _ * @since 2.0.0 * @category Array * @param {Array} array The array to modify. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the new array of removed elements. * @example * * var array = [1, 2, 3, 4]; * var evens = _.remove(array, function(n) { * return n % 2 == 0; * }); * * console.log(array); * // => [1, 3] * * console.log(evens); * // => [2, 4] */ function remove(array, predicate) { var result = []; if (!(array && array.length)) { return result; } var index = -1, indexes = [], length = array.length; predicate = getIteratee(predicate, 3); while (++index < length) { var value = array[index]; if (predicate(value, index, array)) { result.push(value); indexes.push(index); } } basePullAt(array, indexes); return result; } /** * Reverses `array` so that the first element becomes the last, the second * element becomes the second to last, and so on. * * **Note:** This method mutates `array` and is based on * [`Array#reverse`](https://mdn.io/Array/reverse). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to modify. * @returns {Array} Returns `array`. * @example * * var array = [1, 2, 3]; * * _.reverse(array); * // => [3, 2, 1] * * console.log(array); * // => [3, 2, 1] */ function reverse(array) { return array == null ? array : nativeReverse.call(array); } /** * Creates a slice of `array` from `start` up to, but not including, `end`. * * **Note:** This method is used instead of * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are * returned. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to slice. * @param {number} [start=0] The start position. * @param {number} [end=array.length] The end position. * @returns {Array} Returns the slice of `array`. */ function slice(array, start, end) { var length = array == null ? 0 : array.length; if (!length) { return []; } if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { start = 0; end = length; } else { start = start == null ? 0 : toInteger(start); end = end === undefined ? length : toInteger(end); } return baseSlice(array, start, end); } /** * Uses a binary search to determine the lowest index at which `value` * should be inserted into `array` in order to maintain its sort order. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * * _.sortedIndex([30, 50], 40); * // => 1 */ function sortedIndex(array, value) { return baseSortedIndex(array, value); } /** * This method is like `_.sortedIndex` except that it accepts `iteratee` * which is invoked for `value` and each element of `array` to compute their * sort ranking. The iteratee is invoked with one argument: (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * * var objects = [{ 'x': 4 }, { 'x': 5 }]; * * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); * // => 0 * * // The `_.property` iteratee shorthand. * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); * // => 0 */ function sortedIndexBy(array, value, iteratee) { return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); } /** * This method is like `_.indexOf` except that it performs a binary * search on a sorted `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @returns {number} Returns the index of the matched value, else `-1`. * @example * * _.sortedIndexOf([4, 5, 5, 5, 6], 5); * // => 1 */ function sortedIndexOf(array, value) { var length = array == null ? 0 : array.length; if (length) { var index = baseSortedIndex(array, value); if (index < length && eq(array[index], value)) { return index; } } return -1; } /** * This method is like `_.sortedIndex` except that it returns the highest * index at which `value` should be inserted into `array` in order to * maintain its sort order. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * * _.sortedLastIndex([4, 5, 5, 5, 6], 5); * // => 4 */ function sortedLastIndex(array, value) { return baseSortedIndex(array, value, true); } /** * This method is like `_.sortedLastIndex` except that it accepts `iteratee` * which is invoked for `value` and each element of `array` to compute their * sort ranking. The iteratee is invoked with one argument: (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The sorted array to inspect. * @param {*} value The value to evaluate. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {number} Returns the index at which `value` should be inserted * into `array`. * @example * * var objects = [{ 'x': 4 }, { 'x': 5 }]; * * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); * // => 1 * * // The `_.property` iteratee shorthand. * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); * // => 1 */ function sortedLastIndexBy(array, value, iteratee) { return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); } /** * This method is like `_.lastIndexOf` except that it performs a binary * search on a sorted `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @returns {number} Returns the index of the matched value, else `-1`. * @example * * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); * // => 3 */ function sortedLastIndexOf(array, value) { var length = array == null ? 0 : array.length; if (length) { var index = baseSortedIndex(array, value, true) - 1; if (eq(array[index], value)) { return index; } } return -1; } /** * This method is like `_.uniq` except that it's designed and optimized * for sorted arrays. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @returns {Array} Returns the new duplicate free array. * @example * * _.sortedUniq([1, 1, 2]); * // => [1, 2] */ function sortedUniq(array) { return (array && array.length) ? baseSortedUniq(array) : []; } /** * This method is like `_.uniqBy` except that it's designed and optimized * for sorted arrays. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {Function} [iteratee] The iteratee invoked per element. * @returns {Array} Returns the new duplicate free array. * @example * * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); * // => [1.1, 2.3] */ function sortedUniqBy(array, iteratee) { return (array && array.length) ? baseSortedUniq(array, getIteratee(iteratee, 2)) : []; } /** * Gets all but the first element of `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to query. * @returns {Array} Returns the slice of `array`. * @example * * _.tail([1, 2, 3]); * // => [2, 3] */ function tail(array) { var length = array == null ? 0 : array.length; return length ? baseSlice(array, 1, length) : []; } /** * Creates a slice of `array` with `n` elements taken from the beginning. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to query. * @param {number} [n=1] The number of elements to take. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the slice of `array`. * @example * * _.take([1, 2, 3]); * // => [1] * * _.take([1, 2, 3], 2); * // => [1, 2] * * _.take([1, 2, 3], 5); * // => [1, 2, 3] * * _.take([1, 2, 3], 0); * // => [] */ function take(array, n, guard) { if (!(array && array.length)) { return []; } n = (guard || n === undefined) ? 1 : toInteger(n); return baseSlice(array, 0, n < 0 ? 0 : n); } /** * Creates a slice of `array` with `n` elements taken from the end. * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {number} [n=1] The number of elements to take. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the slice of `array`. * @example * * _.takeRight([1, 2, 3]); * // => [3] * * _.takeRight([1, 2, 3], 2); * // => [2, 3] * * _.takeRight([1, 2, 3], 5); * // => [1, 2, 3] * * _.takeRight([1, 2, 3], 0); * // => [] */ function takeRight(array, n, guard) { var length = array == null ? 0 : array.length; if (!length) { return []; } n = (guard || n === undefined) ? 1 : toInteger(n); n = length - n; return baseSlice(array, n < 0 ? 0 : n, length); } /** * Creates a slice of `array` with elements taken from the end. Elements are * taken until `predicate` returns falsey. The predicate is invoked with * three arguments: (value, index, array). * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the slice of `array`. * @example * * var users = [ * { 'user': 'barney', 'active': true }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': false } * ]; * * _.takeRightWhile(users, function(o) { return !o.active; }); * // => objects for ['fred', 'pebbles'] * * // The `_.matches` iteratee shorthand. * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); * // => objects for ['pebbles'] * * // The `_.matchesProperty` iteratee shorthand. * _.takeRightWhile(users, ['active', false]); * // => objects for ['fred', 'pebbles'] * * // The `_.property` iteratee shorthand. * _.takeRightWhile(users, 'active'); * // => [] */ function takeRightWhile(array, predicate) { return (array && array.length) ? baseWhile(array, getIteratee(predicate, 3), false, true) : []; } /** * Creates a slice of `array` with elements taken from the beginning. Elements * are taken until `predicate` returns falsey. The predicate is invoked with * three arguments: (value, index, array). * * @static * @memberOf _ * @since 3.0.0 * @category Array * @param {Array} array The array to query. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the slice of `array`. * @example * * var users = [ * { 'user': 'barney', 'active': false }, * { 'user': 'fred', 'active': false }, * { 'user': 'pebbles', 'active': true } * ]; * * _.takeWhile(users, function(o) { return !o.active; }); * // => objects for ['barney', 'fred'] * * // The `_.matches` iteratee shorthand. * _.takeWhile(users, { 'user': 'barney', 'active': false }); * // => objects for ['barney'] * * // The `_.matchesProperty` iteratee shorthand. * _.takeWhile(users, ['active', false]); * // => objects for ['barney', 'fred'] * * // The `_.property` iteratee shorthand. * _.takeWhile(users, 'active'); * // => [] */ function takeWhile(array, predicate) { return (array && array.length) ? baseWhile(array, getIteratee(predicate, 3)) : []; } /** * Creates an array of unique values, in order, from all given arrays using * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @returns {Array} Returns the new array of combined values. * @example * * _.union([2], [1, 2]); * // => [2, 1] */ var union = baseRest(function(arrays) { return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); }); /** * This method is like `_.union` except that it accepts `iteratee` which is * invoked for each element of each `arrays` to generate the criterion by * which uniqueness is computed. Result values are chosen from the first * array in which the value occurs. The iteratee is invoked with one argument: * (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new array of combined values. * @example * * _.unionBy([2.1], [1.2, 2.3], Math.floor); * // => [2.1, 1.2] * * // The `_.property` iteratee shorthand. * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); * // => [{ 'x': 1 }, { 'x': 2 }] */ var unionBy = baseRest(function(arrays) { var iteratee = last(arrays); if (isArrayLikeObject(iteratee)) { iteratee = undefined; } return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); }); /** * This method is like `_.union` except that it accepts `comparator` which * is invoked to compare elements of `arrays`. Result values are chosen from * the first array in which the value occurs. The comparator is invoked * with two arguments: (arrVal, othVal). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of combined values. * @example * * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; * * _.unionWith(objects, others, _.isEqual); * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] */ var unionWith = baseRest(function(arrays) { var comparator = last(arrays); comparator = typeof comparator == 'function' ? comparator : undefined; return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); }); /** * Creates a duplicate-free version of an array, using * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons, in which only the first occurrence of each element * is kept. The order of result values is determined by the order they occur * in the array. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to inspect. * @returns {Array} Returns the new duplicate free array. * @example * * _.uniq([2, 1, 2]); * // => [2, 1] */ function uniq(array) { return (array && array.length) ? baseUniq(array) : []; } /** * This method is like `_.uniq` except that it accepts `iteratee` which is * invoked for each element in `array` to generate the criterion by which * uniqueness is computed. The order of result values is determined by the * order they occur in the array. The iteratee is invoked with one argument: * (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new duplicate free array. * @example * * _.uniqBy([2.1, 1.2, 2.3], Math.floor); * // => [2.1, 1.2] * * // The `_.property` iteratee shorthand. * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); * // => [{ 'x': 1 }, { 'x': 2 }] */ function uniqBy(array, iteratee) { return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; } /** * This method is like `_.uniq` except that it accepts `comparator` which * is invoked to compare elements of `array`. The order of result values is * determined by the order they occur in the array.The comparator is invoked * with two arguments: (arrVal, othVal). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {Array} array The array to inspect. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new duplicate free array. * @example * * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; * * _.uniqWith(objects, _.isEqual); * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] */ function uniqWith(array, comparator) { comparator = typeof comparator == 'function' ? comparator : undefined; return (array && array.length) ? baseUniq(array, undefined, comparator) : []; } /** * This method is like `_.zip` except that it accepts an array of grouped * elements and creates an array regrouping the elements to their pre-zip * configuration. * * @static * @memberOf _ * @since 1.2.0 * @category Array * @param {Array} array The array of grouped elements to process. * @returns {Array} Returns the new array of regrouped elements. * @example * * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); * // => [['a', 1, true], ['b', 2, false]] * * _.unzip(zipped); * // => [['a', 'b'], [1, 2], [true, false]] */ function unzip(array) { if (!(array && array.length)) { return []; } var length = 0; array = arrayFilter(array, function(group) { if (isArrayLikeObject(group)) { length = nativeMax(group.length, length); return true; } }); return baseTimes(length, function(index) { return arrayMap(array, baseProperty(index)); }); } /** * This method is like `_.unzip` except that it accepts `iteratee` to specify * how regrouped values should be combined. The iteratee is invoked with the * elements of each group: (...group). * * @static * @memberOf _ * @since 3.8.0 * @category Array * @param {Array} array The array of grouped elements to process. * @param {Function} [iteratee=_.identity] The function to combine * regrouped values. * @returns {Array} Returns the new array of regrouped elements. * @example * * var zipped = _.zip([1, 2], [10, 20], [100, 200]); * // => [[1, 10, 100], [2, 20, 200]] * * _.unzipWith(zipped, _.add); * // => [3, 30, 300] */ function unzipWith(array, iteratee) { if (!(array && array.length)) { return []; } var result = unzip(array); if (iteratee == null) { return result; } return arrayMap(result, function(group) { return apply(iteratee, undefined, group); }); } /** * Creates an array excluding all given values using * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. * * **Note:** Unlike `_.pull`, this method returns a new array. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {Array} array The array to inspect. * @param {...*} [values] The values to exclude. * @returns {Array} Returns the new array of filtered values. * @see _.difference, _.xor * @example * * _.without([2, 1, 2, 3], 1, 2); * // => [3] */ var without = baseRest(function(array, values) { return isArrayLikeObject(array) ? baseDifference(array, values) : []; }); /** * Creates an array of unique values that is the * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) * of the given arrays. The order of result values is determined by the order * they occur in the arrays. * * @static * @memberOf _ * @since 2.4.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @returns {Array} Returns the new array of filtered values. * @see _.difference, _.without * @example * * _.xor([2, 1], [2, 3]); * // => [1, 3] */ var xor = baseRest(function(arrays) { return baseXor(arrayFilter(arrays, isArrayLikeObject)); }); /** * This method is like `_.xor` except that it accepts `iteratee` which is * invoked for each element of each `arrays` to generate the criterion by * which by which they're compared. The order of result values is determined * by the order they occur in the arrays. The iteratee is invoked with one * argument: (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new array of filtered values. * @example * * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); * // => [1.2, 3.4] * * // The `_.property` iteratee shorthand. * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); * // => [{ 'x': 2 }] */ var xorBy = baseRest(function(arrays) { var iteratee = last(arrays); if (isArrayLikeObject(iteratee)) { iteratee = undefined; } return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); }); /** * This method is like `_.xor` except that it accepts `comparator` which is * invoked to compare elements of `arrays`. The order of result values is * determined by the order they occur in the arrays. The comparator is invoked * with two arguments: (arrVal, othVal). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [comparator] The comparator invoked per element. * @returns {Array} Returns the new array of filtered values. * @example * * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; * * _.xorWith(objects, others, _.isEqual); * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] */ var xorWith = baseRest(function(arrays) { var comparator = last(arrays); comparator = typeof comparator == 'function' ? comparator : undefined; return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); }); /** * Creates an array of grouped elements, the first of which contains the * first elements of the given arrays, the second of which contains the * second elements of the given arrays, and so on. * * @static * @memberOf _ * @since 0.1.0 * @category Array * @param {...Array} [arrays] The arrays to process. * @returns {Array} Returns the new array of grouped elements. * @example * * _.zip(['a', 'b'], [1, 2], [true, false]); * // => [['a', 1, true], ['b', 2, false]] */ var zip = baseRest(unzip); /** * This method is like `_.fromPairs` except that it accepts two arrays, * one of property identifiers and one of corresponding values. * * @static * @memberOf _ * @since 0.4.0 * @category Array * @param {Array} [props=[]] The property identifiers. * @param {Array} [values=[]] The property values. * @returns {Object} Returns the new object. * @example * * _.zipObject(['a', 'b'], [1, 2]); * // => { 'a': 1, 'b': 2 } */ function zipObject(props, values) { return baseZipObject(props || [], values || [], assignValue); } /** * This method is like `_.zipObject` except that it supports property paths. * * @static * @memberOf _ * @since 4.1.0 * @category Array * @param {Array} [props=[]] The property identifiers. * @param {Array} [values=[]] The property values. * @returns {Object} Returns the new object. * @example * * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } */ function zipObjectDeep(props, values) { return baseZipObject(props || [], values || [], baseSet); } /** * This method is like `_.zip` except that it accepts `iteratee` to specify * how grouped values should be combined. The iteratee is invoked with the * elements of each group: (...group). * * @static * @memberOf _ * @since 3.8.0 * @category Array * @param {...Array} [arrays] The arrays to process. * @param {Function} [iteratee=_.identity] The function to combine * grouped values. * @returns {Array} Returns the new array of grouped elements. * @example * * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { * return a + b + c; * }); * // => [111, 222] */ var zipWith = baseRest(function(arrays) { var length = arrays.length, iteratee = length > 1 ? arrays[length - 1] : undefined; iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; return unzipWith(arrays, iteratee); }); /*------------------------------------------------------------------------*/ /** * Creates a `lodash` wrapper instance that wraps `value` with explicit method * chain sequences enabled. The result of such sequences must be unwrapped * with `_#value`. * * @static * @memberOf _ * @since 1.3.0 * @category Seq * @param {*} value The value to wrap. * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * var users = [ * { 'user': 'barney', 'age': 36 }, * { 'user': 'fred', 'age': 40 }, * { 'user': 'pebbles', 'age': 1 } * ]; * * var youngest = _ * .chain(users) * .sortBy('age') * .map(function(o) { * return o.user + ' is ' + o.age; * }) * .head() * .value(); * // => 'pebbles is 1' */ function chain(value) { var result = lodash(value); result.__chain__ = true; return result; } /** * This method invokes `interceptor` and returns `value`. The interceptor * is invoked with one argument; (value). The purpose of this method is to * "tap into" a method chain sequence in order to modify intermediate results. * * @static * @memberOf _ * @since 0.1.0 * @category Seq * @param {*} value The value to provide to `interceptor`. * @param {Function} interceptor The function to invoke. * @returns {*} Returns `value`. * @example * * _([1, 2, 3]) * .tap(function(array) { * // Mutate input array. * array.pop(); * }) * .reverse() * .value(); * // => [2, 1] */ function tap(value, interceptor) { interceptor(value); return value; } /** * This method is like `_.tap` except that it returns the result of `interceptor`. * The purpose of this method is to "pass thru" values replacing intermediate * results in a method chain sequence. * * @static * @memberOf _ * @since 3.0.0 * @category Seq * @param {*} value The value to provide to `interceptor`. * @param {Function} interceptor The function to invoke. * @returns {*} Returns the result of `interceptor`. * @example * * _(' abc ') * .chain() * .trim() * .thru(function(value) { * return [value]; * }) * .value(); * // => ['abc'] */ function thru(value, interceptor) { return interceptor(value); } /** * This method is the wrapper version of `_.at`. * * @name at * @memberOf _ * @since 1.0.0 * @category Seq * @param {...(string|string[])} [paths] The property paths to pick. * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; * * _(object).at(['a[0].b.c', 'a[1]']).value(); * // => [3, 4] */ var wrapperAt = flatRest(function(paths) { var length = paths.length, start = length ? paths[0] : 0, value = this.__wrapped__, interceptor = function(object) { return baseAt(object, paths); }; if (length > 1 || this.__actions__.length || !(value instanceof LazyWrapper) || !isIndex(start)) { return this.thru(interceptor); } value = value.slice(start, +start + (length ? 1 : 0)); value.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); return new LodashWrapper(value, this.__chain__).thru(function(array) { if (length && !array.length) { array.push(undefined); } return array; }); }); /** * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. * * @name chain * @memberOf _ * @since 0.1.0 * @category Seq * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * var users = [ * { 'user': 'barney', 'age': 36 }, * { 'user': 'fred', 'age': 40 } * ]; * * // A sequence without explicit chaining. * _(users).head(); * // => { 'user': 'barney', 'age': 36 } * * // A sequence with explicit chaining. * _(users) * .chain() * .head() * .pick('user') * .value(); * // => { 'user': 'barney' } */ function wrapperChain() { return chain(this); } /** * Executes the chain sequence and returns the wrapped result. * * @name commit * @memberOf _ * @since 3.2.0 * @category Seq * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * var array = [1, 2]; * var wrapped = _(array).push(3); * * console.log(array); * // => [1, 2] * * wrapped = wrapped.commit(); * console.log(array); * // => [1, 2, 3] * * wrapped.last(); * // => 3 * * console.log(array); * // => [1, 2, 3] */ function wrapperCommit() { return new LodashWrapper(this.value(), this.__chain__); } /** * Gets the next value on a wrapped object following the * [iterator protocol](https://mdn.io/iteration_protocols#iterator). * * @name next * @memberOf _ * @since 4.0.0 * @category Seq * @returns {Object} Returns the next iterator value. * @example * * var wrapped = _([1, 2]); * * wrapped.next(); * // => { 'done': false, 'value': 1 } * * wrapped.next(); * // => { 'done': false, 'value': 2 } * * wrapped.next(); * // => { 'done': true, 'value': undefined } */ function wrapperNext() { if (this.__values__ === undefined) { this.__values__ = toArray(this.value()); } var done = this.__index__ >= this.__values__.length, value = done ? undefined : this.__values__[this.__index__++]; return { 'done': done, 'value': value }; } /** * Enables the wrapper to be iterable. * * @name Symbol.iterator * @memberOf _ * @since 4.0.0 * @category Seq * @returns {Object} Returns the wrapper object. * @example * * var wrapped = _([1, 2]); * * wrapped[Symbol.iterator]() === wrapped; * // => true * * Array.from(wrapped); * // => [1, 2] */ function wrapperToIterator() { return this; } /** * Creates a clone of the chain sequence planting `value` as the wrapped value. * * @name plant * @memberOf _ * @since 3.2.0 * @category Seq * @param {*} value The value to plant. * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * function square(n) { * return n * n; * } * * var wrapped = _([1, 2]).map(square); * var other = wrapped.plant([3, 4]); * * other.value(); * // => [9, 16] * * wrapped.value(); * // => [1, 4] */ function wrapperPlant(value) { var result, parent = this; while (parent instanceof baseLodash) { var clone = wrapperClone(parent); clone.__index__ = 0; clone.__values__ = undefined; if (result) { previous.__wrapped__ = clone; } else { result = clone; } var previous = clone; parent = parent.__wrapped__; } previous.__wrapped__ = value; return result; } /** * This method is the wrapper version of `_.reverse`. * * **Note:** This method mutates the wrapped array. * * @name reverse * @memberOf _ * @since 0.1.0 * @category Seq * @returns {Object} Returns the new `lodash` wrapper instance. * @example * * var array = [1, 2, 3]; * * _(array).reverse().value() * // => [3, 2, 1] * * console.log(array); * // => [3, 2, 1] */ function wrapperReverse() { var value = this.__wrapped__; if (value instanceof LazyWrapper) { var wrapped = value; if (this.__actions__.length) { wrapped = new LazyWrapper(this); } wrapped = wrapped.reverse(); wrapped.__actions__.push({ 'func': thru, 'args': [reverse], 'thisArg': undefined }); return new LodashWrapper(wrapped, this.__chain__); } return this.thru(reverse); } /** * Executes the chain sequence to resolve the unwrapped value. * * @name value * @memberOf _ * @since 0.1.0 * @alias toJSON, valueOf * @category Seq * @returns {*} Returns the resolved unwrapped value. * @example * * _([1, 2, 3]).value(); * // => [1, 2, 3] */ function wrapperValue() { return baseWrapperValue(this.__wrapped__, this.__actions__); } /*------------------------------------------------------------------------*/ /** * Creates an object composed of keys generated from the results of running * each element of `collection` thru `iteratee`. The corresponding value of * each key is the number of times the key was returned by `iteratee`. The * iteratee is invoked with one argument: (value). * * @static * @memberOf _ * @since 0.5.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The iteratee to transform keys. * @returns {Object} Returns the composed aggregate object. * @example * * _.countBy([6.1, 4.2, 6.3], Math.floor); * // => { '4': 1, '6': 2 } * * // The `_.property` iteratee shorthand. * _.countBy(['one', 'two', 'three'], 'length'); * // => { '3': 2, '5': 1 } */ var countBy = createAggregator(function(result, value, key) { if (hasOwnProperty.call(result, key)) { ++result[key]; } else { baseAssignValue(result, key, 1); } }); /** * Checks if `predicate` returns truthy for **all** elements of `collection`. * Iteration is stopped once `predicate` returns falsey. The predicate is * invoked with three arguments: (value, index|key, collection). * * **Note:** This method returns `true` for * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of * elements of empty collections. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {boolean} Returns `true` if all elements pass the predicate check, * else `false`. * @example * * _.every([true, 1, null, 'yes'], Boolean); * // => false * * var users = [ * { 'user': 'barney', 'age': 36, 'active': false }, * { 'user': 'fred', 'age': 40, 'active': false } * ]; * * // The `_.matches` iteratee shorthand. * _.every(users, { 'user': 'barney', 'active': false }); * // => false * * // The `_.matchesProperty` iteratee shorthand. * _.every(users, ['active', false]); * // => true * * // The `_.property` iteratee shorthand. * _.every(users, 'active'); * // => false */ function every(collection, predicate, guard) { var func = isArray(collection) ? arrayEvery : baseEvery; if (guard && isIterateeCall(collection, predicate, guard)) { predicate = undefined; } return func(collection, getIteratee(predicate, 3)); } /** * Iterates over elements of `collection`, returning an array of all elements * `predicate` returns truthy for. The predicate is invoked with three * arguments: (value, index|key, collection). * * **Note:** Unlike `_.remove`, this method returns a new array. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the new filtered array. * @see _.reject * @example * * var users = [ * { 'user': 'barney', 'age': 36, 'active': true }, * { 'user': 'fred', 'age': 40, 'active': false } * ]; * * _.filter(users, function(o) { return !o.active; }); * // => objects for ['fred'] * * // The `_.matches` iteratee shorthand. * _.filter(users, { 'age': 36, 'active': true }); * // => objects for ['barney'] * * // The `_.matchesProperty` iteratee shorthand. * _.filter(users, ['active', false]); * // => objects for ['fred'] * * // The `_.property` iteratee shorthand. * _.filter(users, 'active'); * // => objects for ['barney'] */ function filter(collection, predicate) { var func = isArray(collection) ? arrayFilter : baseFilter; return func(collection, getIteratee(predicate, 3)); } /** * Iterates over elements of `collection`, returning the first element * `predicate` returns truthy for. The predicate is invoked with three * arguments: (value, index|key, collection). * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param {number} [fromIndex=0] The index to search from. * @returns {*} Returns the matched element, else `undefined`. * @example * * var users = [ * { 'user': 'barney', 'age': 36, 'active': true }, * { 'user': 'fred', 'age': 40, 'active': false }, * { 'user': 'pebbles', 'age': 1, 'active': true } * ]; * * _.find(users, function(o) { return o.age < 40; }); * // => object for 'barney' * * // The `_.matches` iteratee shorthand. * _.find(users, { 'age': 1, 'active': true }); * // => object for 'pebbles' * * // The `_.matchesProperty` iteratee shorthand. * _.find(users, ['active', false]); * // => object for 'fred' * * // The `_.property` iteratee shorthand. * _.find(users, 'active'); * // => object for 'barney' */ var find = createFind(findIndex); /** * This method is like `_.find` except that it iterates over elements of * `collection` from right to left. * * @static * @memberOf _ * @since 2.0.0 * @category Collection * @param {Array|Object} collection The collection to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param {number} [fromIndex=collection.length-1] The index to search from. * @returns {*} Returns the matched element, else `undefined`. * @example * * _.findLast([1, 2, 3, 4], function(n) { * return n % 2 == 1; * }); * // => 3 */ var findLast = createFind(findLastIndex); /** * Creates a flattened array of values by running each element in `collection` * thru `iteratee` and flattening the mapped results. The iteratee is invoked * with three arguments: (value, index|key, collection). * * @static * @memberOf _ * @since 4.0.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Array} Returns the new flattened array. * @example * * function duplicate(n) { * return [n, n]; * } * * _.flatMap([1, 2], duplicate); * // => [1, 1, 2, 2] */ function flatMap(collection, iteratee) { return baseFlatten(map(collection, iteratee), 1); } /** * This method is like `_.flatMap` except that it recursively flattens the * mapped results. * * @static * @memberOf _ * @since 4.7.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Array} Returns the new flattened array. * @example * * function duplicate(n) { * return [[[n, n]]]; * } * * _.flatMapDeep([1, 2], duplicate); * // => [1, 1, 2, 2] */ function flatMapDeep(collection, iteratee) { return baseFlatten(map(collection, iteratee), INFINITY); } /** * This method is like `_.flatMap` except that it recursively flattens the * mapped results up to `depth` times. * * @static * @memberOf _ * @since 4.7.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @param {number} [depth=1] The maximum recursion depth. * @returns {Array} Returns the new flattened array. * @example * * function duplicate(n) { * return [[[n, n]]]; * } * * _.flatMapDepth([1, 2], duplicate, 2); * // => [[1, 1], [2, 2]] */ function flatMapDepth(collection, iteratee, depth) { depth = depth === undefined ? 1 : toInteger(depth); return baseFlatten(map(collection, iteratee), depth); } /** * Iterates over elements of `collection` and invokes `iteratee` for each element. * The iteratee is invoked with three arguments: (value, index|key, collection). * Iteratee functions may exit iteration early by explicitly returning `false`. * * **Note:** As with other "Collections" methods, objects with a "length" * property are iterated like arrays. To avoid this behavior use `_.forIn` * or `_.forOwn` for object iteration. * * @static * @memberOf _ * @since 0.1.0 * @alias each * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Array|Object} Returns `collection`. * @see _.forEachRight * @example * * _.forEach([1, 2], function(value) { * console.log(value); * }); * // => Logs `1` then `2`. * * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { * console.log(key); * }); * // => Logs 'a' then 'b' (iteration order is not guaranteed). */ function forEach(collection, iteratee) { var func = isArray(collection) ? arrayEach : baseEach; return func(collection, getIteratee(iteratee, 3)); } /** * This method is like `_.forEach` except that it iterates over elements of * `collection` from right to left. * * @static * @memberOf _ * @since 2.0.0 * @alias eachRight * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Array|Object} Returns `collection`. * @see _.forEach * @example * * _.forEachRight([1, 2], function(value) { * console.log(value); * }); * // => Logs `2` then `1`. */ function forEachRight(collection, iteratee) { var func = isArray(collection) ? arrayEachRight : baseEachRight; return func(collection, getIteratee(iteratee, 3)); } /** * Creates an object composed of keys generated from the results of running * each element of `collection` thru `iteratee`. The order of grouped values * is determined by the order they occur in `collection`. The corresponding * value of each key is an array of elements responsible for generating the * key. The iteratee is invoked with one argument: (value). * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The iteratee to transform keys. * @returns {Object} Returns the composed aggregate object. * @example * * _.groupBy([6.1, 4.2, 6.3], Math.floor); * // => { '4': [4.2], '6': [6.1, 6.3] } * * // The `_.property` iteratee shorthand. * _.groupBy(['one', 'two', 'three'], 'length'); * // => { '3': ['one', 'two'], '5': ['three'] } */ var groupBy = createAggregator(function(result, value, key) { if (hasOwnProperty.call(result, key)) { result[key].push(value); } else { baseAssignValue(result, key, [value]); } }); /** * Checks if `value` is in `collection`. If `collection` is a string, it's * checked for a substring of `value`, otherwise * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * is used for equality comparisons. If `fromIndex` is negative, it's used as * the offset from the end of `collection`. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object|string} collection The collection to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=0] The index to search from. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. * @returns {boolean} Returns `true` if `value` is found, else `false`. * @example * * _.includes([1, 2, 3], 1); * // => true * * _.includes([1, 2, 3], 1, 2); * // => false * * _.includes({ 'a': 1, 'b': 2 }, 1); * // => true * * _.includes('abcd', 'bc'); * // => true */ function includes(collection, value, fromIndex, guard) { collection = isArrayLike(collection) ? collection : values(collection); fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; var length = collection.length; if (fromIndex < 0) { fromIndex = nativeMax(length + fromIndex, 0); } return isString(collection) ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) : (!!length && baseIndexOf(collection, value, fromIndex) > -1); } /** * Invokes the method at `path` of each element in `collection`, returning * an array of the results of each invoked method. Any additional arguments * are provided to each invoked method. If `path` is a function, it's invoked * for, and `this` bound to, each element in `collection`. * * @static * @memberOf _ * @since 4.0.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Array|Function|string} path The path of the method to invoke or * the function invoked per iteration. * @param {...*} [args] The arguments to invoke each method with. * @returns {Array} Returns the array of results. * @example * * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); * // => [[1, 5, 7], [1, 2, 3]] * * _.invokeMap([123, 456], String.prototype.split, ''); * // => [['1', '2', '3'], ['4', '5', '6']] */ var invokeMap = baseRest(function(collection, path, args) { var index = -1, isFunc = typeof path == 'function', result = isArrayLike(collection) ? Array(collection.length) : []; baseEach(collection, function(value) { result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); }); return result; }); /** * Creates an object composed of keys generated from the results of running * each element of `collection` thru `iteratee`. The corresponding value of * each key is the last element responsible for generating the key. The * iteratee is invoked with one argument: (value). * * @static * @memberOf _ * @since 4.0.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The iteratee to transform keys. * @returns {Object} Returns the composed aggregate object. * @example * * var array = [ * { 'dir': 'left', 'code': 97 }, * { 'dir': 'right', 'code': 100 } * ]; * * _.keyBy(array, function(o) { * return String.fromCharCode(o.code); * }); * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } * * _.keyBy(array, 'dir'); * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } */ var keyBy = createAggregator(function(result, value, key) { baseAssignValue(result, key, value); }); /** * Creates an array of values by running each element in `collection` thru * `iteratee`. The iteratee is invoked with three arguments: * (value, index|key, collection). * * Many lodash methods are guarded to work as iteratees for methods like * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. * * The guarded methods are: * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, * `template`, `trim`, `trimEnd`, `trimStart`, and `words` * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Array} Returns the new mapped array. * @example * * function square(n) { * return n * n; * } * * _.map([4, 8], square); * // => [16, 64] * * _.map({ 'a': 4, 'b': 8 }, square); * // => [16, 64] (iteration order is not guaranteed) * * var users = [ * { 'user': 'barney' }, * { 'user': 'fred' } * ]; * * // The `_.property` iteratee shorthand. * _.map(users, 'user'); * // => ['barney', 'fred'] */ function map(collection, iteratee) { var func = isArray(collection) ? arrayMap : baseMap; return func(collection, getIteratee(iteratee, 3)); } /** * This method is like `_.sortBy` except that it allows specifying the sort * orders of the iteratees to sort by. If `orders` is unspecified, all values * are sorted in ascending order. Otherwise, specify an order of "desc" for * descending or "asc" for ascending sort order of corresponding values. * * @static * @memberOf _ * @since 4.0.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] * The iteratees to sort by. * @param {string[]} [orders] The sort orders of `iteratees`. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. * @returns {Array} Returns the new sorted array. * @example * * var users = [ * { 'user': 'fred', 'age': 48 }, * { 'user': 'barney', 'age': 34 }, * { 'user': 'fred', 'age': 40 }, * { 'user': 'barney', 'age': 36 } * ]; * * // Sort by `user` in ascending order and by `age` in descending order. * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] */ function orderBy(collection, iteratees, orders, guard) { if (collection == null) { return []; } if (!isArray(iteratees)) { iteratees = iteratees == null ? [] : [iteratees]; } orders = guard ? undefined : orders; if (!isArray(orders)) { orders = orders == null ? [] : [orders]; } return baseOrderBy(collection, iteratees, orders); } /** * Creates an array of elements split into two groups, the first of which * contains elements `predicate` returns truthy for, the second of which * contains elements `predicate` returns falsey for. The predicate is * invoked with one argument: (value). * * @static * @memberOf _ * @since 3.0.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the array of grouped elements. * @example * * var users = [ * { 'user': 'barney', 'age': 36, 'active': false }, * { 'user': 'fred', 'age': 40, 'active': true }, * { 'user': 'pebbles', 'age': 1, 'active': false } * ]; * * _.partition(users, function(o) { return o.active; }); * // => objects for [['fred'], ['barney', 'pebbles']] * * // The `_.matches` iteratee shorthand. * _.partition(users, { 'age': 1, 'active': false }); * // => objects for [['pebbles'], ['barney', 'fred']] * * // The `_.matchesProperty` iteratee shorthand. * _.partition(users, ['active', false]); * // => objects for [['barney', 'pebbles'], ['fred']] * * // The `_.property` iteratee shorthand. * _.partition(users, 'active'); * // => objects for [['fred'], ['barney', 'pebbles']] */ var partition = createAggregator(function(result, value, key) { result[key ? 0 : 1].push(value); }, function() { return [[], []]; }); /** * Reduces `collection` to a value which is the accumulated result of running * each element in `collection` thru `iteratee`, where each successive * invocation is supplied the return value of the previous. If `accumulator` * is not given, the first element of `collection` is used as the initial * value. The iteratee is invoked with four arguments: * (accumulator, value, index|key, collection). * * Many lodash methods are guarded to work as iteratees for methods like * `_.reduce`, `_.reduceRight`, and `_.transform`. * * The guarded methods are: * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, * and `sortBy` * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @param {*} [accumulator] The initial value. * @returns {*} Returns the accumulated value. * @see _.reduceRight * @example * * _.reduce([1, 2], function(sum, n) { * return sum + n; * }, 0); * // => 3 * * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { * (result[value] || (result[value] = [])).push(key); * return result; * }, {}); * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) */ function reduce(collection, iteratee, accumulator) { var func = isArray(collection) ? arrayReduce : baseReduce, initAccum = arguments.length < 3; return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); } /** * This method is like `_.reduce` except that it iterates over elements of * `collection` from right to left. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @param {*} [accumulator] The initial value. * @returns {*} Returns the accumulated value. * @see _.reduce * @example * * var array = [[0, 1], [2, 3], [4, 5]]; * * _.reduceRight(array, function(flattened, other) { * return flattened.concat(other); * }, []); * // => [4, 5, 2, 3, 0, 1] */ function reduceRight(collection, iteratee, accumulator) { var func = isArray(collection) ? arrayReduceRight : baseReduce, initAccum = arguments.length < 3; return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); } /** * The opposite of `_.filter`; this method returns the elements of `collection` * that `predicate` does **not** return truthy for. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {Array} Returns the new filtered array. * @see _.filter * @example * * var users = [ * { 'user': 'barney', 'age': 36, 'active': false }, * { 'user': 'fred', 'age': 40, 'active': true } * ]; * * _.reject(users, function(o) { return !o.active; }); * // => objects for ['fred'] * * // The `_.matches` iteratee shorthand. * _.reject(users, { 'age': 40, 'active': true }); * // => objects for ['barney'] * * // The `_.matchesProperty` iteratee shorthand. * _.reject(users, ['active', false]); * // => objects for ['fred'] * * // The `_.property` iteratee shorthand. * _.reject(users, 'active'); * // => objects for ['barney'] */ function reject(collection, predicate) { var func = isArray(collection) ? arrayFilter : baseFilter; return func(collection, negate(getIteratee(predicate, 3))); } /** * Gets a random element from `collection`. * * @static * @memberOf _ * @since 2.0.0 * @category Collection * @param {Array|Object} collection The collection to sample. * @returns {*} Returns the random element. * @example * * _.sample([1, 2, 3, 4]); * // => 2 */ function sample(collection) { var func = isArray(collection) ? arraySample : baseSample; return func(collection); } /** * Gets `n` random elements at unique keys from `collection` up to the * size of `collection`. * * @static * @memberOf _ * @since 4.0.0 * @category Collection * @param {Array|Object} collection The collection to sample. * @param {number} [n=1] The number of elements to sample. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Array} Returns the random elements. * @example * * _.sampleSize([1, 2, 3], 2); * // => [3, 1] * * _.sampleSize([1, 2, 3], 4); * // => [2, 3, 1] */ function sampleSize(collection, n, guard) { if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { n = 1; } else { n = toInteger(n); } var func = isArray(collection) ? arraySampleSize : baseSampleSize; return func(collection, n); } /** * Creates an array of shuffled values, using a version of the * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to shuffle. * @returns {Array} Returns the new shuffled array. * @example * * _.shuffle([1, 2, 3, 4]); * // => [4, 1, 3, 2] */ function shuffle(collection) { var func = isArray(collection) ? arrayShuffle : baseShuffle; return func(collection); } /** * Gets the size of `collection` by returning its length for array-like * values or the number of own enumerable string keyed properties for objects. * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object|string} collection The collection to inspect. * @returns {number} Returns the collection size. * @example * * _.size([1, 2, 3]); * // => 3 * * _.size({ 'a': 1, 'b': 2 }); * // => 2 * * _.size('pebbles'); * // => 7 */ function size(collection) { if (collection == null) { return 0; } if (isArrayLike(collection)) { return isString(collection) ? stringSize(collection) : collection.length; } var tag = getTag(collection); if (tag == mapTag || tag == setTag) { return collection.size; } return baseKeys(collection).length; } /** * Checks if `predicate` returns truthy for **any** element of `collection`. * Iteration is stopped once `predicate` returns truthy. The predicate is * invoked with three arguments: (value, index|key, collection). * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {boolean} Returns `true` if any element passes the predicate check, * else `false`. * @example * * _.some([null, 0, 'yes', false], Boolean); * // => true * * var users = [ * { 'user': 'barney', 'active': true }, * { 'user': 'fred', 'active': false } * ]; * * // The `_.matches` iteratee shorthand. * _.some(users, { 'user': 'barney', 'active': false }); * // => false * * // The `_.matchesProperty` iteratee shorthand. * _.some(users, ['active', false]); * // => true * * // The `_.property` iteratee shorthand. * _.some(users, 'active'); * // => true */ function some(collection, predicate, guard) { var func = isArray(collection) ? arraySome : baseSome; if (guard && isIterateeCall(collection, predicate, guard)) { predicate = undefined; } return func(collection, getIteratee(predicate, 3)); } /** * Creates an array of elements, sorted in ascending order by the results of * running each element in a collection thru each iteratee. This method * performs a stable sort, that is, it preserves the original sort order of * equal elements. The iteratees are invoked with one argument: (value). * * @static * @memberOf _ * @since 0.1.0 * @category Collection * @param {Array|Object} collection The collection to iterate over. * @param {...(Function|Function[])} [iteratees=[_.identity]] * The iteratees to sort by. * @returns {Array} Returns the new sorted array. * @example * * var users = [ * { 'user': 'fred', 'age': 48 }, * { 'user': 'barney', 'age': 36 }, * { 'user': 'fred', 'age': 40 }, * { 'user': 'barney', 'age': 34 } * ]; * * _.sortBy(users, [function(o) { return o.user; }]); * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] * * _.sortBy(users, ['user', 'age']); * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] */ var sortBy = baseRest(function(collection, iteratees) { if (collection == null) { return []; } var length = iteratees.length; if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { iteratees = []; } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { iteratees = [iteratees[0]]; } return baseOrderBy(collection, baseFlatten(iteratees, 1), []); }); /*------------------------------------------------------------------------*/ /** * Gets the timestamp of the number of milliseconds that have elapsed since * the Unix epoch (1 January 1970 00:00:00 UTC). * * @static * @memberOf _ * @since 2.4.0 * @category Date * @returns {number} Returns the timestamp. * @example * * _.defer(function(stamp) { * console.log(_.now() - stamp); * }, _.now()); * // => Logs the number of milliseconds it took for the deferred invocation. */ var now = ctxNow || function() { return root.Date.now(); }; /*------------------------------------------------------------------------*/ /** * The opposite of `_.before`; this method creates a function that invokes * `func` once it's called `n` or more times. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {number} n The number of calls before `func` is invoked. * @param {Function} func The function to restrict. * @returns {Function} Returns the new restricted function. * @example * * var saves = ['profile', 'settings']; * * var done = _.after(saves.length, function() { * console.log('done saving!'); * }); * * _.forEach(saves, function(type) { * asyncSave({ 'type': type, 'complete': done }); * }); * // => Logs 'done saving!' after the two async saves have completed. */ function after(n, func) { if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } n = toInteger(n); return function() { if (--n < 1) { return func.apply(this, arguments); } }; } /** * Creates a function that invokes `func`, with up to `n` arguments, * ignoring any additional arguments. * * @static * @memberOf _ * @since 3.0.0 * @category Function * @param {Function} func The function to cap arguments for. * @param {number} [n=func.length] The arity cap. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Function} Returns the new capped function. * @example * * _.map(['6', '8', '10'], _.ary(parseInt, 1)); * // => [6, 8, 10] */ function ary(func, n, guard) { n = guard ? undefined : n; n = (func && n == null) ? func.length : n; return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); } /** * Creates a function that invokes `func`, with the `this` binding and arguments * of the created function, while it's called less than `n` times. Subsequent * calls to the created function return the result of the last `func` invocation. * * @static * @memberOf _ * @since 3.0.0 * @category Function * @param {number} n The number of calls at which `func` is no longer invoked. * @param {Function} func The function to restrict. * @returns {Function} Returns the new restricted function. * @example * * jQuery(element).on('click', _.before(5, addContactToList)); * // => Allows adding up to 4 contacts to the list. */ function before(n, func) { var result; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } n = toInteger(n); return function() { if (--n > 0) { result = func.apply(this, arguments); } if (n <= 1) { func = undefined; } return result; }; } /** * Creates a function that invokes `func` with the `this` binding of `thisArg` * and `partials` prepended to the arguments it receives. * * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, * may be used as a placeholder for partially applied arguments. * * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" * property of bound functions. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to bind. * @param {*} thisArg The `this` binding of `func`. * @param {...*} [partials] The arguments to be partially applied. * @returns {Function} Returns the new bound function. * @example * * function greet(greeting, punctuation) { * return greeting + ' ' + this.user + punctuation; * } * * var object = { 'user': 'fred' }; * * var bound = _.bind(greet, object, 'hi'); * bound('!'); * // => 'hi fred!' * * // Bound with placeholders. * var bound = _.bind(greet, object, _, '!'); * bound('hi'); * // => 'hi fred!' */ var bind = baseRest(function(func, thisArg, partials) { var bitmask = WRAP_BIND_FLAG; if (partials.length) { var holders = replaceHolders(partials, getHolder(bind)); bitmask |= WRAP_PARTIAL_FLAG; } return createWrap(func, bitmask, thisArg, partials, holders); }); /** * Creates a function that invokes the method at `object[key]` with `partials` * prepended to the arguments it receives. * * This method differs from `_.bind` by allowing bound functions to reference * methods that may be redefined or don't yet exist. See * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) * for more details. * * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic * builds, may be used as a placeholder for partially applied arguments. * * @static * @memberOf _ * @since 0.10.0 * @category Function * @param {Object} object The object to invoke the method on. * @param {string} key The key of the method. * @param {...*} [partials] The arguments to be partially applied. * @returns {Function} Returns the new bound function. * @example * * var object = { * 'user': 'fred', * 'greet': function(greeting, punctuation) { * return greeting + ' ' + this.user + punctuation; * } * }; * * var bound = _.bindKey(object, 'greet', 'hi'); * bound('!'); * // => 'hi fred!' * * object.greet = function(greeting, punctuation) { * return greeting + 'ya ' + this.user + punctuation; * }; * * bound('!'); * // => 'hiya fred!' * * // Bound with placeholders. * var bound = _.bindKey(object, 'greet', _, '!'); * bound('hi'); * // => 'hiya fred!' */ var bindKey = baseRest(function(object, key, partials) { var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; if (partials.length) { var holders = replaceHolders(partials, getHolder(bindKey)); bitmask |= WRAP_PARTIAL_FLAG; } return createWrap(key, bitmask, object, partials, holders); }); /** * Creates a function that accepts arguments of `func` and either invokes * `func` returning its result, if at least `arity` number of arguments have * been provided, or returns a function that accepts the remaining `func` * arguments, and so on. The arity of `func` may be specified if `func.length` * is not sufficient. * * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, * may be used as a placeholder for provided arguments. * * **Note:** This method doesn't set the "length" property of curried functions. * * @static * @memberOf _ * @since 2.0.0 * @category Function * @param {Function} func The function to curry. * @param {number} [arity=func.length] The arity of `func`. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Function} Returns the new curried function. * @example * * var abc = function(a, b, c) { * return [a, b, c]; * }; * * var curried = _.curry(abc); * * curried(1)(2)(3); * // => [1, 2, 3] * * curried(1, 2)(3); * // => [1, 2, 3] * * curried(1, 2, 3); * // => [1, 2, 3] * * // Curried with placeholders. * curried(1)(_, 3)(2); * // => [1, 2, 3] */ function curry(func, arity, guard) { arity = guard ? undefined : arity; var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); result.placeholder = curry.placeholder; return result; } /** * This method is like `_.curry` except that arguments are applied to `func` * in the manner of `_.partialRight` instead of `_.partial`. * * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic * builds, may be used as a placeholder for provided arguments. * * **Note:** This method doesn't set the "length" property of curried functions. * * @static * @memberOf _ * @since 3.0.0 * @category Function * @param {Function} func The function to curry. * @param {number} [arity=func.length] The arity of `func`. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Function} Returns the new curried function. * @example * * var abc = function(a, b, c) { * return [a, b, c]; * }; * * var curried = _.curryRight(abc); * * curried(3)(2)(1); * // => [1, 2, 3] * * curried(2, 3)(1); * // => [1, 2, 3] * * curried(1, 2, 3); * // => [1, 2, 3] * * // Curried with placeholders. * curried(3)(1, _)(2); * // => [1, 2, 3] */ function curryRight(func, arity, guard) { arity = guard ? undefined : arity; var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); result.placeholder = curryRight.placeholder; return result; } /** * Creates a debounced function that delays invoking `func` until after `wait` * milliseconds have elapsed since the last time the debounced function was * invoked. The debounced function comes with a `cancel` method to cancel * delayed `func` invocations and a `flush` method to immediately invoke them. * Provide `options` to indicate whether `func` should be invoked on the * leading and/or trailing edge of the `wait` timeout. The `func` is invoked * with the last arguments provided to the debounced function. Subsequent * calls to the debounced function return the result of the last `func` * invocation. * * **Note:** If `leading` and `trailing` options are `true`, `func` is * invoked on the trailing edge of the timeout only if the debounced function * is invoked more than once during the `wait` timeout. * * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred * until to the next tick, similar to `setTimeout` with a timeout of `0`. * * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) * for details over the differences between `_.debounce` and `_.throttle`. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to debounce. * @param {number} [wait=0] The number of milliseconds to delay. * @param {Object} [options={}] The options object. * @param {boolean} [options.leading=false] * Specify invoking on the leading edge of the timeout. * @param {number} [options.maxWait] * The maximum time `func` is allowed to be delayed before it's invoked. * @param {boolean} [options.trailing=true] * Specify invoking on the trailing edge of the timeout. * @returns {Function} Returns the new debounced function. * @example * * // Avoid costly calculations while the window size is in flux. * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); * * // Invoke `sendMail` when clicked, debouncing subsequent calls. * jQuery(element).on('click', _.debounce(sendMail, 300, { * 'leading': true, * 'trailing': false * })); * * // Ensure `batchLog` is invoked once after 1 second of debounced calls. * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); * var source = new EventSource('/stream'); * jQuery(source).on('message', debounced); * * // Cancel the trailing debounced invocation. * jQuery(window).on('popstate', debounced.cancel); */ function debounce(func, wait, options) { var lastArgs, lastThis, maxWait, result, timerId, lastCallTime, lastInvokeTime = 0, leading = false, maxing = false, trailing = true; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } wait = toNumber(wait) || 0; if (isObject(options)) { leading = !!options.leading; maxing = 'maxWait' in options; maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; trailing = 'trailing' in options ? !!options.trailing : trailing; } function invokeFunc(time) { var args = lastArgs, thisArg = lastThis; lastArgs = lastThis = undefined; lastInvokeTime = time; result = func.apply(thisArg, args); return result; } function leadingEdge(time) { // Reset any `maxWait` timer. lastInvokeTime = time; // Start the timer for the trailing edge. timerId = setTimeout(timerExpired, wait); // Invoke the leading edge. return leading ? invokeFunc(time) : result; } function remainingWait(time) { var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime, timeWaiting = wait - timeSinceLastCall; return maxing ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting; } function shouldInvoke(time) { var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime; // Either this is the first call, activity has stopped and we're at the // trailing edge, the system time has gone backwards and we're treating // it as the trailing edge, or we've hit the `maxWait` limit. return (lastCallTime === undefined || (timeSinceLastCall >= wait) || (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); } function timerExpired() { var time = now(); if (shouldInvoke(time)) { return trailingEdge(time); } // Restart the timer. timerId = setTimeout(timerExpired, remainingWait(time)); } function trailingEdge(time) { timerId = undefined; // Only invoke if we have `lastArgs` which means `func` has been // debounced at least once. if (trailing && lastArgs) { return invokeFunc(time); } lastArgs = lastThis = undefined; return result; } function cancel() { if (timerId !== undefined) { clearTimeout(timerId); } lastInvokeTime = 0; lastArgs = lastCallTime = lastThis = timerId = undefined; } function flush() { return timerId === undefined ? result : trailingEdge(now()); } function debounced() { var time = now(), isInvoking = shouldInvoke(time); lastArgs = arguments; lastThis = this; lastCallTime = time; if (isInvoking) { if (timerId === undefined) { return leadingEdge(lastCallTime); } if (maxing) { // Handle invocations in a tight loop. timerId = setTimeout(timerExpired, wait); return invokeFunc(lastCallTime); } } if (timerId === undefined) { timerId = setTimeout(timerExpired, wait); } return result; } debounced.cancel = cancel; debounced.flush = flush; return debounced; } /** * Defers invoking the `func` until the current call stack has cleared. Any * additional arguments are provided to `func` when it's invoked. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to defer. * @param {...*} [args] The arguments to invoke `func` with. * @returns {number} Returns the timer id. * @example * * _.defer(function(text) { * console.log(text); * }, 'deferred'); * // => Logs 'deferred' after one millisecond. */ var defer = baseRest(function(func, args) { return baseDelay(func, 1, args); }); /** * Invokes `func` after `wait` milliseconds. Any additional arguments are * provided to `func` when it's invoked. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to delay. * @param {number} wait The number of milliseconds to delay invocation. * @param {...*} [args] The arguments to invoke `func` with. * @returns {number} Returns the timer id. * @example * * _.delay(function(text) { * console.log(text); * }, 1000, 'later'); * // => Logs 'later' after one second. */ var delay = baseRest(function(func, wait, args) { return baseDelay(func, toNumber(wait) || 0, args); }); /** * Creates a function that invokes `func` with arguments reversed. * * @static * @memberOf _ * @since 4.0.0 * @category Function * @param {Function} func The function to flip arguments for. * @returns {Function} Returns the new flipped function. * @example * * var flipped = _.flip(function() { * return _.toArray(arguments); * }); * * flipped('a', 'b', 'c', 'd'); * // => ['d', 'c', 'b', 'a'] */ function flip(func) { return createWrap(func, WRAP_FLIP_FLAG); } /** * Creates a function that memoizes the result of `func`. If `resolver` is * provided, it determines the cache key for storing the result based on the * arguments provided to the memoized function. By default, the first argument * provided to the memoized function is used as the map cache key. The `func` * is invoked with the `this` binding of the memoized function. * * **Note:** The cache is exposed as the `cache` property on the memoized * function. Its creation may be customized by replacing the `_.memoize.Cache` * constructor with one whose instances implement the * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) * method interface of `clear`, `delete`, `get`, `has`, and `set`. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to have its output memoized. * @param {Function} [resolver] The function to resolve the cache key. * @returns {Function} Returns the new memoized function. * @example * * var object = { 'a': 1, 'b': 2 }; * var other = { 'c': 3, 'd': 4 }; * * var values = _.memoize(_.values); * values(object); * // => [1, 2] * * values(other); * // => [3, 4] * * object.a = 2; * values(object); * // => [1, 2] * * // Modify the result cache. * values.cache.set(object, ['a', 'b']); * values(object); * // => ['a', 'b'] * * // Replace `_.memoize.Cache`. * _.memoize.Cache = WeakMap; */ function memoize(func, resolver) { if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { throw new TypeError(FUNC_ERROR_TEXT); } var memoized = function() { var args = arguments, key = resolver ? resolver.apply(this, args) : args[0], cache = memoized.cache; if (cache.has(key)) { return cache.get(key); } var result = func.apply(this, args); memoized.cache = cache.set(key, result) || cache; return result; }; memoized.cache = new (memoize.Cache || MapCache); return memoized; } // Expose `MapCache`. memoize.Cache = MapCache; /** * Creates a function that negates the result of the predicate `func`. The * `func` predicate is invoked with the `this` binding and arguments of the * created function. * * @static * @memberOf _ * @since 3.0.0 * @category Function * @param {Function} predicate The predicate to negate. * @returns {Function} Returns the new negated function. * @example * * function isEven(n) { * return n % 2 == 0; * } * * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); * // => [1, 3, 5] */ function negate(predicate) { if (typeof predicate != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } return function() { var args = arguments; switch (args.length) { case 0: return !predicate.call(this); case 1: return !predicate.call(this, args[0]); case 2: return !predicate.call(this, args[0], args[1]); case 3: return !predicate.call(this, args[0], args[1], args[2]); } return !predicate.apply(this, args); }; } /** * Creates a function that is restricted to invoking `func` once. Repeat calls * to the function return the value of the first invocation. The `func` is * invoked with the `this` binding and arguments of the created function. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to restrict. * @returns {Function} Returns the new restricted function. * @example * * var initialize = _.once(createApplication); * initialize(); * initialize(); * // => `createApplication` is invoked once */ function once(func) { return before(2, func); } /** * Creates a function that invokes `func` with its arguments transformed. * * @static * @since 4.0.0 * @memberOf _ * @category Function * @param {Function} func The function to wrap. * @param {...(Function|Function[])} [transforms=[_.identity]] * The argument transforms. * @returns {Function} Returns the new function. * @example * * function doubled(n) { * return n * 2; * } * * function square(n) { * return n * n; * } * * var func = _.overArgs(function(x, y) { * return [x, y]; * }, [square, doubled]); * * func(9, 3); * // => [81, 6] * * func(10, 5); * // => [100, 10] */ var overArgs = castRest(function(func, transforms) { transforms = (transforms.length == 1 && isArray(transforms[0])) ? arrayMap(transforms[0], baseUnary(getIteratee())) : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); var funcsLength = transforms.length; return baseRest(function(args) { var index = -1, length = nativeMin(args.length, funcsLength); while (++index < length) { args[index] = transforms[index].call(this, args[index]); } return apply(func, this, args); }); }); /** * Creates a function that invokes `func` with `partials` prepended to the * arguments it receives. This method is like `_.bind` except it does **not** * alter the `this` binding. * * The `_.partial.placeholder` value, which defaults to `_` in monolithic * builds, may be used as a placeholder for partially applied arguments. * * **Note:** This method doesn't set the "length" property of partially * applied functions. * * @static * @memberOf _ * @since 0.2.0 * @category Function * @param {Function} func The function to partially apply arguments to. * @param {...*} [partials] The arguments to be partially applied. * @returns {Function} Returns the new partially applied function. * @example * * function greet(greeting, name) { * return greeting + ' ' + name; * } * * var sayHelloTo = _.partial(greet, 'hello'); * sayHelloTo('fred'); * // => 'hello fred' * * // Partially applied with placeholders. * var greetFred = _.partial(greet, _, 'fred'); * greetFred('hi'); * // => 'hi fred' */ var partial = baseRest(function(func, partials) { var holders = replaceHolders(partials, getHolder(partial)); return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); }); /** * This method is like `_.partial` except that partially applied arguments * are appended to the arguments it receives. * * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic * builds, may be used as a placeholder for partially applied arguments. * * **Note:** This method doesn't set the "length" property of partially * applied functions. * * @static * @memberOf _ * @since 1.0.0 * @category Function * @param {Function} func The function to partially apply arguments to. * @param {...*} [partials] The arguments to be partially applied. * @returns {Function} Returns the new partially applied function. * @example * * function greet(greeting, name) { * return greeting + ' ' + name; * } * * var greetFred = _.partialRight(greet, 'fred'); * greetFred('hi'); * // => 'hi fred' * * // Partially applied with placeholders. * var sayHelloTo = _.partialRight(greet, 'hello', _); * sayHelloTo('fred'); * // => 'hello fred' */ var partialRight = baseRest(function(func, partials) { var holders = replaceHolders(partials, getHolder(partialRight)); return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); }); /** * Creates a function that invokes `func` with arguments arranged according * to the specified `indexes` where the argument value at the first index is * provided as the first argument, the argument value at the second index is * provided as the second argument, and so on. * * @static * @memberOf _ * @since 3.0.0 * @category Function * @param {Function} func The function to rearrange arguments for. * @param {...(number|number[])} indexes The arranged argument indexes. * @returns {Function} Returns the new function. * @example * * var rearged = _.rearg(function(a, b, c) { * return [a, b, c]; * }, [2, 0, 1]); * * rearged('b', 'c', 'a') * // => ['a', 'b', 'c'] */ var rearg = flatRest(function(func, indexes) { return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); }); /** * Creates a function that invokes `func` with the `this` binding of the * created function and arguments from `start` and beyond provided as * an array. * * **Note:** This method is based on the * [rest parameter](https://mdn.io/rest_parameters). * * @static * @memberOf _ * @since 4.0.0 * @category Function * @param {Function} func The function to apply a rest parameter to. * @param {number} [start=func.length-1] The start position of the rest parameter. * @returns {Function} Returns the new function. * @example * * var say = _.rest(function(what, names) { * return what + ' ' + _.initial(names).join(', ') + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); * }); * * say('hello', 'fred', 'barney', 'pebbles'); * // => 'hello fred, barney, & pebbles' */ function rest(func, start) { if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } start = start === undefined ? start : toInteger(start); return baseRest(func, start); } /** * Creates a function that invokes `func` with the `this` binding of the * create function and an array of arguments much like * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). * * **Note:** This method is based on the * [spread operator](https://mdn.io/spread_operator). * * @static * @memberOf _ * @since 3.2.0 * @category Function * @param {Function} func The function to spread arguments over. * @param {number} [start=0] The start position of the spread. * @returns {Function} Returns the new function. * @example * * var say = _.spread(function(who, what) { * return who + ' says ' + what; * }); * * say(['fred', 'hello']); * // => 'fred says hello' * * var numbers = Promise.all([ * Promise.resolve(40), * Promise.resolve(36) * ]); * * numbers.then(_.spread(function(x, y) { * return x + y; * })); * // => a Promise of 76 */ function spread(func, start) { if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } start = start == null ? 0 : nativeMax(toInteger(start), 0); return baseRest(function(args) { var array = args[start], otherArgs = castSlice(args, 0, start); if (array) { arrayPush(otherArgs, array); } return apply(func, this, otherArgs); }); } /** * Creates a throttled function that only invokes `func` at most once per * every `wait` milliseconds. The throttled function comes with a `cancel` * method to cancel delayed `func` invocations and a `flush` method to * immediately invoke them. Provide `options` to indicate whether `func` * should be invoked on the leading and/or trailing edge of the `wait` * timeout. The `func` is invoked with the last arguments provided to the * throttled function. Subsequent calls to the throttled function return the * result of the last `func` invocation. * * **Note:** If `leading` and `trailing` options are `true`, `func` is * invoked on the trailing edge of the timeout only if the throttled function * is invoked more than once during the `wait` timeout. * * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred * until to the next tick, similar to `setTimeout` with a timeout of `0`. * * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) * for details over the differences between `_.throttle` and `_.debounce`. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {Function} func The function to throttle. * @param {number} [wait=0] The number of milliseconds to throttle invocations to. * @param {Object} [options={}] The options object. * @param {boolean} [options.leading=true] * Specify invoking on the leading edge of the timeout. * @param {boolean} [options.trailing=true] * Specify invoking on the trailing edge of the timeout. * @returns {Function} Returns the new throttled function. * @example * * // Avoid excessively updating the position while scrolling. * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); * * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); * jQuery(element).on('click', throttled); * * // Cancel the trailing throttled invocation. * jQuery(window).on('popstate', throttled.cancel); */ function throttle(func, wait, options) { var leading = true, trailing = true; if (typeof func != 'function') { throw new TypeError(FUNC_ERROR_TEXT); } if (isObject(options)) { leading = 'leading' in options ? !!options.leading : leading; trailing = 'trailing' in options ? !!options.trailing : trailing; } return debounce(func, wait, { 'leading': leading, 'maxWait': wait, 'trailing': trailing }); } /** * Creates a function that accepts up to one argument, ignoring any * additional arguments. * * @static * @memberOf _ * @since 4.0.0 * @category Function * @param {Function} func The function to cap arguments for. * @returns {Function} Returns the new capped function. * @example * * _.map(['6', '8', '10'], _.unary(parseInt)); * // => [6, 8, 10] */ function unary(func) { return ary(func, 1); } /** * Creates a function that provides `value` to `wrapper` as its first * argument. Any additional arguments provided to the function are appended * to those provided to the `wrapper`. The wrapper is invoked with the `this` * binding of the created function. * * @static * @memberOf _ * @since 0.1.0 * @category Function * @param {*} value The value to wrap. * @param {Function} [wrapper=identity] The wrapper function. * @returns {Function} Returns the new function. * @example * * var p = _.wrap(_.escape, function(func, text) { * return '

' + func(text) + '

'; * }); * * p('fred, barney, & pebbles'); * // => '

fred, barney, & pebbles

' */ function wrap(value, wrapper) { return partial(castFunction(wrapper), value); } /*------------------------------------------------------------------------*/ /** * Casts `value` as an array if it's not one. * * @static * @memberOf _ * @since 4.4.0 * @category Lang * @param {*} value The value to inspect. * @returns {Array} Returns the cast array. * @example * * _.castArray(1); * // => [1] * * _.castArray({ 'a': 1 }); * // => [{ 'a': 1 }] * * _.castArray('abc'); * // => ['abc'] * * _.castArray(null); * // => [null] * * _.castArray(undefined); * // => [undefined] * * _.castArray(); * // => [] * * var array = [1, 2, 3]; * console.log(_.castArray(array) === array); * // => true */ function castArray() { if (!arguments.length) { return []; } var value = arguments[0]; return isArray(value) ? value : [value]; } /** * Creates a shallow clone of `value`. * * **Note:** This method is loosely based on the * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) * and supports cloning arrays, array buffers, booleans, date objects, maps, * numbers, `Object` objects, regexes, sets, strings, symbols, and typed * arrays. The own enumerable properties of `arguments` objects are cloned * as plain objects. An empty object is returned for uncloneable values such * as error objects, functions, DOM nodes, and WeakMaps. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to clone. * @returns {*} Returns the cloned value. * @see _.cloneDeep * @example * * var objects = [{ 'a': 1 }, { 'b': 2 }]; * * var shallow = _.clone(objects); * console.log(shallow[0] === objects[0]); * // => true */ function clone(value) { return baseClone(value, CLONE_SYMBOLS_FLAG); } /** * This method is like `_.clone` except that it accepts `customizer` which * is invoked to produce the cloned value. If `customizer` returns `undefined`, * cloning is handled by the method instead. The `customizer` is invoked with * up to four arguments; (value [, index|key, object, stack]). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to clone. * @param {Function} [customizer] The function to customize cloning. * @returns {*} Returns the cloned value. * @see _.cloneDeepWith * @example * * function customizer(value) { * if (_.isElement(value)) { * return value.cloneNode(false); * } * } * * var el = _.cloneWith(document.body, customizer); * * console.log(el === document.body); * // => false * console.log(el.nodeName); * // => 'BODY' * console.log(el.childNodes.length); * // => 0 */ function cloneWith(value, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); } /** * This method is like `_.clone` except that it recursively clones `value`. * * @static * @memberOf _ * @since 1.0.0 * @category Lang * @param {*} value The value to recursively clone. * @returns {*} Returns the deep cloned value. * @see _.clone * @example * * var objects = [{ 'a': 1 }, { 'b': 2 }]; * * var deep = _.cloneDeep(objects); * console.log(deep[0] === objects[0]); * // => false */ function cloneDeep(value) { return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); } /** * This method is like `_.cloneWith` except that it recursively clones `value`. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to recursively clone. * @param {Function} [customizer] The function to customize cloning. * @returns {*} Returns the deep cloned value. * @see _.cloneWith * @example * * function customizer(value) { * if (_.isElement(value)) { * return value.cloneNode(true); * } * } * * var el = _.cloneDeepWith(document.body, customizer); * * console.log(el === document.body); * // => false * console.log(el.nodeName); * // => 'BODY' * console.log(el.childNodes.length); * // => 20 */ function cloneDeepWith(value, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); } /** * Checks if `object` conforms to `source` by invoking the predicate * properties of `source` with the corresponding property values of `object`. * * **Note:** This method is equivalent to `_.conforms` when `source` is * partially applied. * * @static * @memberOf _ * @since 4.14.0 * @category Lang * @param {Object} object The object to inspect. * @param {Object} source The object of property predicates to conform to. * @returns {boolean} Returns `true` if `object` conforms, else `false`. * @example * * var object = { 'a': 1, 'b': 2 }; * * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); * // => true * * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); * // => false */ function conformsTo(object, source) { return source == null || baseConformsTo(object, source, keys(source)); } /** * Performs a * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * comparison between two values to determine if they are equivalent. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if the values are equivalent, else `false`. * @example * * var object = { 'a': 1 }; * var other = { 'a': 1 }; * * _.eq(object, object); * // => true * * _.eq(object, other); * // => false * * _.eq('a', 'a'); * // => true * * _.eq('a', Object('a')); * // => false * * _.eq(NaN, NaN); * // => true */ function eq(value, other) { return value === other || (value !== value && other !== other); } /** * Checks if `value` is greater than `other`. * * @static * @memberOf _ * @since 3.9.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is greater than `other`, * else `false`. * @see _.lt * @example * * _.gt(3, 1); * // => true * * _.gt(3, 3); * // => false * * _.gt(1, 3); * // => false */ var gt = createRelationalOperation(baseGt); /** * Checks if `value` is greater than or equal to `other`. * * @static * @memberOf _ * @since 3.9.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is greater than or equal to * `other`, else `false`. * @see _.lte * @example * * _.gte(3, 1); * // => true * * _.gte(3, 3); * // => true * * _.gte(1, 3); * // => false */ var gte = createRelationalOperation(function(value, other) { return value >= other; }); /** * Checks if `value` is likely an `arguments` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an `arguments` object, * else `false`. * @example * * _.isArguments(function() { return arguments; }()); * // => true * * _.isArguments([1, 2, 3]); * // => false */ var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); }; /** * Checks if `value` is classified as an `Array` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an array, else `false`. * @example * * _.isArray([1, 2, 3]); * // => true * * _.isArray(document.body.children); * // => false * * _.isArray('abc'); * // => false * * _.isArray(_.noop); * // => false */ var isArray = Array.isArray; /** * Checks if `value` is classified as an `ArrayBuffer` object. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. * @example * * _.isArrayBuffer(new ArrayBuffer(2)); * // => true * * _.isArrayBuffer(new Array(2)); * // => false */ var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; /** * Checks if `value` is array-like. A value is considered array-like if it's * not a function and has a `value.length` that's an integer greater than or * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is array-like, else `false`. * @example * * _.isArrayLike([1, 2, 3]); * // => true * * _.isArrayLike(document.body.children); * // => true * * _.isArrayLike('abc'); * // => true * * _.isArrayLike(_.noop); * // => false */ function isArrayLike(value) { return value != null && isLength(value.length) && !isFunction(value); } /** * This method is like `_.isArrayLike` except that it also checks if `value` * is an object. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an array-like object, * else `false`. * @example * * _.isArrayLikeObject([1, 2, 3]); * // => true * * _.isArrayLikeObject(document.body.children); * // => true * * _.isArrayLikeObject('abc'); * // => false * * _.isArrayLikeObject(_.noop); * // => false */ function isArrayLikeObject(value) { return isObjectLike(value) && isArrayLike(value); } /** * Checks if `value` is classified as a boolean primitive or object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. * @example * * _.isBoolean(false); * // => true * * _.isBoolean(null); * // => false */ function isBoolean(value) { return value === true || value === false || (isObjectLike(value) && baseGetTag(value) == boolTag); } /** * Checks if `value` is a buffer. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. * @example * * _.isBuffer(new Buffer(2)); * // => true * * _.isBuffer(new Uint8Array(2)); * // => false */ var isBuffer = nativeIsBuffer || stubFalse; /** * Checks if `value` is classified as a `Date` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a date object, else `false`. * @example * * _.isDate(new Date); * // => true * * _.isDate('Mon April 23 2012'); * // => false */ var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; /** * Checks if `value` is likely a DOM element. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. * @example * * _.isElement(document.body); * // => true * * _.isElement(''); * // => false */ function isElement(value) { return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); } /** * Checks if `value` is an empty object, collection, map, or set. * * Objects are considered empty if they have no own enumerable string keyed * properties. * * Array-like values such as `arguments` objects, arrays, buffers, strings, or * jQuery-like collections are considered empty if they have a `length` of `0`. * Similarly, maps and sets are considered empty if they have a `size` of `0`. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is empty, else `false`. * @example * * _.isEmpty(null); * // => true * * _.isEmpty(true); * // => true * * _.isEmpty(1); * // => true * * _.isEmpty([1, 2, 3]); * // => false * * _.isEmpty({ 'a': 1 }); * // => false */ function isEmpty(value) { if (value == null) { return true; } if (isArrayLike(value) && (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || isBuffer(value) || isTypedArray(value) || isArguments(value))) { return !value.length; } var tag = getTag(value); if (tag == mapTag || tag == setTag) { return !value.size; } if (isPrototype(value)) { return !baseKeys(value).length; } for (var key in value) { if (hasOwnProperty.call(value, key)) { return false; } } return true; } /** * Performs a deep comparison between two values to determine if they are * equivalent. * * **Note:** This method supports comparing arrays, array buffers, booleans, * date objects, error objects, maps, numbers, `Object` objects, regexes, * sets, strings, symbols, and typed arrays. `Object` objects are compared * by their own, not inherited, enumerable properties. Functions and DOM * nodes are compared by strict equality, i.e. `===`. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if the values are equivalent, else `false`. * @example * * var object = { 'a': 1 }; * var other = { 'a': 1 }; * * _.isEqual(object, other); * // => true * * object === other; * // => false */ function isEqual(value, other) { return baseIsEqual(value, other); } /** * This method is like `_.isEqual` except that it accepts `customizer` which * is invoked to compare values. If `customizer` returns `undefined`, comparisons * are handled by the method instead. The `customizer` is invoked with up to * six arguments: (objValue, othValue [, index|key, object, other, stack]). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @param {Function} [customizer] The function to customize comparisons. * @returns {boolean} Returns `true` if the values are equivalent, else `false`. * @example * * function isGreeting(value) { * return /^h(?:i|ello)$/.test(value); * } * * function customizer(objValue, othValue) { * if (isGreeting(objValue) && isGreeting(othValue)) { * return true; * } * } * * var array = ['hello', 'goodbye']; * var other = ['hi', 'goodbye']; * * _.isEqualWith(array, other, customizer); * // => true */ function isEqualWith(value, other, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; var result = customizer ? customizer(value, other) : undefined; return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; } /** * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, * `SyntaxError`, `TypeError`, or `URIError` object. * * @static * @memberOf _ * @since 3.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an error object, else `false`. * @example * * _.isError(new Error); * // => true * * _.isError(Error); * // => false */ function isError(value) { if (!isObjectLike(value)) { return false; } var tag = baseGetTag(value); return tag == errorTag || tag == domExcTag || (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); } /** * Checks if `value` is a finite primitive number. * * **Note:** This method is based on * [`Number.isFinite`](https://mdn.io/Number/isFinite). * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. * @example * * _.isFinite(3); * // => true * * _.isFinite(Number.MIN_VALUE); * // => true * * _.isFinite(Infinity); * // => false * * _.isFinite('3'); * // => false */ function isFinite(value) { return typeof value == 'number' && nativeIsFinite(value); } /** * Checks if `value` is classified as a `Function` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a function, else `false`. * @example * * _.isFunction(_); * // => true * * _.isFunction(/abc/); * // => false */ function isFunction(value) { if (!isObject(value)) { return false; } // The use of `Object#toString` avoids issues with the `typeof` operator // in Safari 9 which returns 'object' for typed arrays and other constructors. var tag = baseGetTag(value); return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; } /** * Checks if `value` is an integer. * * **Note:** This method is based on * [`Number.isInteger`](https://mdn.io/Number/isInteger). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an integer, else `false`. * @example * * _.isInteger(3); * // => true * * _.isInteger(Number.MIN_VALUE); * // => false * * _.isInteger(Infinity); * // => false * * _.isInteger('3'); * // => false */ function isInteger(value) { return typeof value == 'number' && value == toInteger(value); } /** * Checks if `value` is a valid array-like length. * * **Note:** This method is loosely based on * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. * @example * * _.isLength(3); * // => true * * _.isLength(Number.MIN_VALUE); * // => false * * _.isLength(Infinity); * // => false * * _.isLength('3'); * // => false */ function isLength(value) { return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; } /** * Checks if `value` is the * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is an object, else `false`. * @example * * _.isObject({}); * // => true * * _.isObject([1, 2, 3]); * // => true * * _.isObject(_.noop); * // => true * * _.isObject(null); * // => false */ function isObject(value) { var type = typeof value; return value != null && (type == 'object' || type == 'function'); } /** * Checks if `value` is object-like. A value is object-like if it's not `null` * and has a `typeof` result of "object". * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is object-like, else `false`. * @example * * _.isObjectLike({}); * // => true * * _.isObjectLike([1, 2, 3]); * // => true * * _.isObjectLike(_.noop); * // => false * * _.isObjectLike(null); * // => false */ function isObjectLike(value) { return value != null && typeof value == 'object'; } /** * Checks if `value` is classified as a `Map` object. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a map, else `false`. * @example * * _.isMap(new Map); * // => true * * _.isMap(new WeakMap); * // => false */ var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; /** * Performs a partial deep comparison between `object` and `source` to * determine if `object` contains equivalent property values. * * **Note:** This method is equivalent to `_.matches` when `source` is * partially applied. * * Partial comparisons will match empty array and empty object `source` * values against any array or object value, respectively. See `_.isEqual` * for a list of supported value comparisons. * * @static * @memberOf _ * @since 3.0.0 * @category Lang * @param {Object} object The object to inspect. * @param {Object} source The object of property values to match. * @returns {boolean} Returns `true` if `object` is a match, else `false`. * @example * * var object = { 'a': 1, 'b': 2 }; * * _.isMatch(object, { 'b': 2 }); * // => true * * _.isMatch(object, { 'b': 1 }); * // => false */ function isMatch(object, source) { return object === source || baseIsMatch(object, source, getMatchData(source)); } /** * This method is like `_.isMatch` except that it accepts `customizer` which * is invoked to compare values. If `customizer` returns `undefined`, comparisons * are handled by the method instead. The `customizer` is invoked with five * arguments: (objValue, srcValue, index|key, object, source). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {Object} object The object to inspect. * @param {Object} source The object of property values to match. * @param {Function} [customizer] The function to customize comparisons. * @returns {boolean} Returns `true` if `object` is a match, else `false`. * @example * * function isGreeting(value) { * return /^h(?:i|ello)$/.test(value); * } * * function customizer(objValue, srcValue) { * if (isGreeting(objValue) && isGreeting(srcValue)) { * return true; * } * } * * var object = { 'greeting': 'hello' }; * var source = { 'greeting': 'hi' }; * * _.isMatchWith(object, source, customizer); * // => true */ function isMatchWith(object, source, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; return baseIsMatch(object, source, getMatchData(source), customizer); } /** * Checks if `value` is `NaN`. * * **Note:** This method is based on * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for * `undefined` and other non-number values. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. * @example * * _.isNaN(NaN); * // => true * * _.isNaN(new Number(NaN)); * // => true * * isNaN(undefined); * // => true * * _.isNaN(undefined); * // => false */ function isNaN(value) { // An `NaN` primitive is the only value that is not equal to itself. // Perform the `toStringTag` check first to avoid errors with some // ActiveX objects in IE. return isNumber(value) && value != +value; } /** * Checks if `value` is a pristine native function. * * **Note:** This method can't reliably detect native functions in the presence * of the core-js package because core-js circumvents this kind of detection. * Despite multiple requests, the core-js maintainer has made it clear: any * attempt to fix the detection will be obstructed. As a result, we're left * with little choice but to throw an error. Unfortunately, this also affects * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), * which rely on core-js. * * @static * @memberOf _ * @since 3.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a native function, * else `false`. * @example * * _.isNative(Array.prototype.push); * // => true * * _.isNative(_); * // => false */ function isNative(value) { if (isMaskable(value)) { throw new Error(CORE_ERROR_TEXT); } return baseIsNative(value); } /** * Checks if `value` is `null`. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is `null`, else `false`. * @example * * _.isNull(null); * // => true * * _.isNull(void 0); * // => false */ function isNull(value) { return value === null; } /** * Checks if `value` is `null` or `undefined`. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is nullish, else `false`. * @example * * _.isNil(null); * // => true * * _.isNil(void 0); * // => true * * _.isNil(NaN); * // => false */ function isNil(value) { return value == null; } /** * Checks if `value` is classified as a `Number` primitive or object. * * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are * classified as numbers, use the `_.isFinite` method. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a number, else `false`. * @example * * _.isNumber(3); * // => true * * _.isNumber(Number.MIN_VALUE); * // => true * * _.isNumber(Infinity); * // => true * * _.isNumber('3'); * // => false */ function isNumber(value) { return typeof value == 'number' || (isObjectLike(value) && baseGetTag(value) == numberTag); } /** * Checks if `value` is a plain object, that is, an object created by the * `Object` constructor or one with a `[[Prototype]]` of `null`. * * @static * @memberOf _ * @since 0.8.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. * @example * * function Foo() { * this.a = 1; * } * * _.isPlainObject(new Foo); * // => false * * _.isPlainObject([1, 2, 3]); * // => false * * _.isPlainObject({ 'x': 0, 'y': 0 }); * // => true * * _.isPlainObject(Object.create(null)); * // => true */ function isPlainObject(value) { if (!isObjectLike(value) || baseGetTag(value) != objectTag) { return false; } var proto = getPrototype(value); if (proto === null) { return true; } var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; return typeof Ctor == 'function' && Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString; } /** * Checks if `value` is classified as a `RegExp` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. * @example * * _.isRegExp(/abc/); * // => true * * _.isRegExp('/abc/'); * // => false */ var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; /** * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 * double precision number which isn't the result of a rounded unsafe integer. * * **Note:** This method is based on * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. * @example * * _.isSafeInteger(3); * // => true * * _.isSafeInteger(Number.MIN_VALUE); * // => false * * _.isSafeInteger(Infinity); * // => false * * _.isSafeInteger('3'); * // => false */ function isSafeInteger(value) { return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; } /** * Checks if `value` is classified as a `Set` object. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a set, else `false`. * @example * * _.isSet(new Set); * // => true * * _.isSet(new WeakSet); * // => false */ var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; /** * Checks if `value` is classified as a `String` primitive or object. * * @static * @since 0.1.0 * @memberOf _ * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a string, else `false`. * @example * * _.isString('abc'); * // => true * * _.isString(1); * // => false */ function isString(value) { return typeof value == 'string' || (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); } /** * Checks if `value` is classified as a `Symbol` primitive or object. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. * @example * * _.isSymbol(Symbol.iterator); * // => true * * _.isSymbol('abc'); * // => false */ function isSymbol(value) { return typeof value == 'symbol' || (isObjectLike(value) && baseGetTag(value) == symbolTag); } /** * Checks if `value` is classified as a typed array. * * @static * @memberOf _ * @since 3.0.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. * @example * * _.isTypedArray(new Uint8Array); * // => true * * _.isTypedArray([]); * // => false */ var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; /** * Checks if `value` is `undefined`. * * @static * @since 0.1.0 * @memberOf _ * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. * @example * * _.isUndefined(void 0); * // => true * * _.isUndefined(null); * // => false */ function isUndefined(value) { return value === undefined; } /** * Checks if `value` is classified as a `WeakMap` object. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. * @example * * _.isWeakMap(new WeakMap); * // => true * * _.isWeakMap(new Map); * // => false */ function isWeakMap(value) { return isObjectLike(value) && getTag(value) == weakMapTag; } /** * Checks if `value` is classified as a `WeakSet` object. * * @static * @memberOf _ * @since 4.3.0 * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. * @example * * _.isWeakSet(new WeakSet); * // => true * * _.isWeakSet(new Set); * // => false */ function isWeakSet(value) { return isObjectLike(value) && baseGetTag(value) == weakSetTag; } /** * Checks if `value` is less than `other`. * * @static * @memberOf _ * @since 3.9.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is less than `other`, * else `false`. * @see _.gt * @example * * _.lt(1, 3); * // => true * * _.lt(3, 3); * // => false * * _.lt(3, 1); * // => false */ var lt = createRelationalOperation(baseLt); /** * Checks if `value` is less than or equal to `other`. * * @static * @memberOf _ * @since 3.9.0 * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @returns {boolean} Returns `true` if `value` is less than or equal to * `other`, else `false`. * @see _.gte * @example * * _.lte(1, 3); * // => true * * _.lte(3, 3); * // => true * * _.lte(3, 1); * // => false */ var lte = createRelationalOperation(function(value, other) { return value <= other; }); /** * Converts `value` to an array. * * @static * @since 0.1.0 * @memberOf _ * @category Lang * @param {*} value The value to convert. * @returns {Array} Returns the converted array. * @example * * _.toArray({ 'a': 1, 'b': 2 }); * // => [1, 2] * * _.toArray('abc'); * // => ['a', 'b', 'c'] * * _.toArray(1); * // => [] * * _.toArray(null); * // => [] */ function toArray(value) { if (!value) { return []; } if (isArrayLike(value)) { return isString(value) ? stringToArray(value) : copyArray(value); } if (symIterator && value[symIterator]) { return iteratorToArray(value[symIterator]()); } var tag = getTag(value), func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); return func(value); } /** * Converts `value` to a finite number. * * @static * @memberOf _ * @since 4.12.0 * @category Lang * @param {*} value The value to convert. * @returns {number} Returns the converted number. * @example * * _.toFinite(3.2); * // => 3.2 * * _.toFinite(Number.MIN_VALUE); * // => 5e-324 * * _.toFinite(Infinity); * // => 1.7976931348623157e+308 * * _.toFinite('3.2'); * // => 3.2 */ function toFinite(value) { if (!value) { return value === 0 ? value : 0; } value = toNumber(value); if (value === INFINITY || value === -INFINITY) { var sign = (value < 0 ? -1 : 1); return sign * MAX_INTEGER; } return value === value ? value : 0; } /** * Converts `value` to an integer. * * **Note:** This method is loosely based on * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to convert. * @returns {number} Returns the converted integer. * @example * * _.toInteger(3.2); * // => 3 * * _.toInteger(Number.MIN_VALUE); * // => 0 * * _.toInteger(Infinity); * // => 1.7976931348623157e+308 * * _.toInteger('3.2'); * // => 3 */ function toInteger(value) { var result = toFinite(value), remainder = result % 1; return result === result ? (remainder ? result - remainder : result) : 0; } /** * Converts `value` to an integer suitable for use as the length of an * array-like object. * * **Note:** This method is based on * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to convert. * @returns {number} Returns the converted integer. * @example * * _.toLength(3.2); * // => 3 * * _.toLength(Number.MIN_VALUE); * // => 0 * * _.toLength(Infinity); * // => 4294967295 * * _.toLength('3.2'); * // => 3 */ function toLength(value) { return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; } /** * Converts `value` to a number. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to process. * @returns {number} Returns the number. * @example * * _.toNumber(3.2); * // => 3.2 * * _.toNumber(Number.MIN_VALUE); * // => 5e-324 * * _.toNumber(Infinity); * // => Infinity * * _.toNumber('3.2'); * // => 3.2 */ function toNumber(value) { if (typeof value == 'number') { return value; } if (isSymbol(value)) { return NAN; } if (isObject(value)) { var other = typeof value.valueOf == 'function' ? value.valueOf() : value; value = isObject(other) ? (other + '') : other; } if (typeof value != 'string') { return value === 0 ? value : +value; } value = value.replace(reTrim, ''); var isBinary = reIsBinary.test(value); return (isBinary || reIsOctal.test(value)) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : (reIsBadHex.test(value) ? NAN : +value); } /** * Converts `value` to a plain object flattening inherited enumerable string * keyed properties of `value` to own properties of the plain object. * * @static * @memberOf _ * @since 3.0.0 * @category Lang * @param {*} value The value to convert. * @returns {Object} Returns the converted plain object. * @example * * function Foo() { * this.b = 2; * } * * Foo.prototype.c = 3; * * _.assign({ 'a': 1 }, new Foo); * // => { 'a': 1, 'b': 2 } * * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); * // => { 'a': 1, 'b': 2, 'c': 3 } */ function toPlainObject(value) { return copyObject(value, keysIn(value)); } /** * Converts `value` to a safe integer. A safe integer can be compared and * represented correctly. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to convert. * @returns {number} Returns the converted integer. * @example * * _.toSafeInteger(3.2); * // => 3 * * _.toSafeInteger(Number.MIN_VALUE); * // => 0 * * _.toSafeInteger(Infinity); * // => 9007199254740991 * * _.toSafeInteger('3.2'); * // => 3 */ function toSafeInteger(value) { return value ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) : (value === 0 ? value : 0); } /** * Converts `value` to a string. An empty string is returned for `null` * and `undefined` values. The sign of `-0` is preserved. * * @static * @memberOf _ * @since 4.0.0 * @category Lang * @param {*} value The value to convert. * @returns {string} Returns the converted string. * @example * * _.toString(null); * // => '' * * _.toString(-0); * // => '-0' * * _.toString([1, 2, 3]); * // => '1,2,3' */ function toString(value) { return value == null ? '' : baseToString(value); } /*------------------------------------------------------------------------*/ /** * Assigns own enumerable string keyed properties of source objects to the * destination object. Source objects are applied from left to right. * Subsequent sources overwrite property assignments of previous sources. * * **Note:** This method mutates `object` and is loosely based on * [`Object.assign`](https://mdn.io/Object/assign). * * @static * @memberOf _ * @since 0.10.0 * @category Object * @param {Object} object The destination object. * @param {...Object} [sources] The source objects. * @returns {Object} Returns `object`. * @see _.assignIn * @example * * function Foo() { * this.a = 1; * } * * function Bar() { * this.c = 3; * } * * Foo.prototype.b = 2; * Bar.prototype.d = 4; * * _.assign({ 'a': 0 }, new Foo, new Bar); * // => { 'a': 1, 'c': 3 } */ var assign = createAssigner(function(object, source) { if (isPrototype(source) || isArrayLike(source)) { copyObject(source, keys(source), object); return; } for (var key in source) { if (hasOwnProperty.call(source, key)) { assignValue(object, key, source[key]); } } }); /** * This method is like `_.assign` except that it iterates over own and * inherited source properties. * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @alias extend * @category Object * @param {Object} object The destination object. * @param {...Object} [sources] The source objects. * @returns {Object} Returns `object`. * @see _.assign * @example * * function Foo() { * this.a = 1; * } * * function Bar() { * this.c = 3; * } * * Foo.prototype.b = 2; * Bar.prototype.d = 4; * * _.assignIn({ 'a': 0 }, new Foo, new Bar); * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } */ var assignIn = createAssigner(function(object, source) { copyObject(source, keysIn(source), object); }); /** * This method is like `_.assignIn` except that it accepts `customizer` * which is invoked to produce the assigned values. If `customizer` returns * `undefined`, assignment is handled by the method instead. The `customizer` * is invoked with five arguments: (objValue, srcValue, key, object, source). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @alias extendWith * @category Object * @param {Object} object The destination object. * @param {...Object} sources The source objects. * @param {Function} [customizer] The function to customize assigned values. * @returns {Object} Returns `object`. * @see _.assignWith * @example * * function customizer(objValue, srcValue) { * return _.isUndefined(objValue) ? srcValue : objValue; * } * * var defaults = _.partialRight(_.assignInWith, customizer); * * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); * // => { 'a': 1, 'b': 2 } */ var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { copyObject(source, keysIn(source), object, customizer); }); /** * This method is like `_.assign` except that it accepts `customizer` * which is invoked to produce the assigned values. If `customizer` returns * `undefined`, assignment is handled by the method instead. The `customizer` * is invoked with five arguments: (objValue, srcValue, key, object, source). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The destination object. * @param {...Object} sources The source objects. * @param {Function} [customizer] The function to customize assigned values. * @returns {Object} Returns `object`. * @see _.assignInWith * @example * * function customizer(objValue, srcValue) { * return _.isUndefined(objValue) ? srcValue : objValue; * } * * var defaults = _.partialRight(_.assignWith, customizer); * * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); * // => { 'a': 1, 'b': 2 } */ var assignWith = createAssigner(function(object, source, srcIndex, customizer) { copyObject(source, keys(source), object, customizer); }); /** * Creates an array of values corresponding to `paths` of `object`. * * @static * @memberOf _ * @since 1.0.0 * @category Object * @param {Object} object The object to iterate over. * @param {...(string|string[])} [paths] The property paths to pick. * @returns {Array} Returns the picked values. * @example * * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; * * _.at(object, ['a[0].b.c', 'a[1]']); * // => [3, 4] */ var at = flatRest(baseAt); /** * Creates an object that inherits from the `prototype` object. If a * `properties` object is given, its own enumerable string keyed properties * are assigned to the created object. * * @static * @memberOf _ * @since 2.3.0 * @category Object * @param {Object} prototype The object to inherit from. * @param {Object} [properties] The properties to assign to the object. * @returns {Object} Returns the new object. * @example * * function Shape() { * this.x = 0; * this.y = 0; * } * * function Circle() { * Shape.call(this); * } * * Circle.prototype = _.create(Shape.prototype, { * 'constructor': Circle * }); * * var circle = new Circle; * circle instanceof Circle; * // => true * * circle instanceof Shape; * // => true */ function create(prototype, properties) { var result = baseCreate(prototype); return properties == null ? result : baseAssign(result, properties); } /** * Assigns own and inherited enumerable string keyed properties of source * objects to the destination object for all destination properties that * resolve to `undefined`. Source objects are applied from left to right. * Once a property is set, additional values of the same property are ignored. * * **Note:** This method mutates `object`. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The destination object. * @param {...Object} [sources] The source objects. * @returns {Object} Returns `object`. * @see _.defaultsDeep * @example * * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); * // => { 'a': 1, 'b': 2 } */ var defaults = baseRest(function(object, sources) { object = Object(object); var index = -1; var length = sources.length; var guard = length > 2 ? sources[2] : undefined; if (guard && isIterateeCall(sources[0], sources[1], guard)) { length = 1; } while (++index < length) { var source = sources[index]; var props = keysIn(source); var propsIndex = -1; var propsLength = props.length; while (++propsIndex < propsLength) { var key = props[propsIndex]; var value = object[key]; if (value === undefined || (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { object[key] = source[key]; } } } return object; }); /** * This method is like `_.defaults` except that it recursively assigns * default properties. * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 3.10.0 * @category Object * @param {Object} object The destination object. * @param {...Object} [sources] The source objects. * @returns {Object} Returns `object`. * @see _.defaults * @example * * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); * // => { 'a': { 'b': 2, 'c': 3 } } */ var defaultsDeep = baseRest(function(args) { args.push(undefined, customDefaultsMerge); return apply(mergeWith, undefined, args); }); /** * This method is like `_.find` except that it returns the key of the first * element `predicate` returns truthy for instead of the element itself. * * @static * @memberOf _ * @since 1.1.0 * @category Object * @param {Object} object The object to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {string|undefined} Returns the key of the matched element, * else `undefined`. * @example * * var users = { * 'barney': { 'age': 36, 'active': true }, * 'fred': { 'age': 40, 'active': false }, * 'pebbles': { 'age': 1, 'active': true } * }; * * _.findKey(users, function(o) { return o.age < 40; }); * // => 'barney' (iteration order is not guaranteed) * * // The `_.matches` iteratee shorthand. * _.findKey(users, { 'age': 1, 'active': true }); * // => 'pebbles' * * // The `_.matchesProperty` iteratee shorthand. * _.findKey(users, ['active', false]); * // => 'fred' * * // The `_.property` iteratee shorthand. * _.findKey(users, 'active'); * // => 'barney' */ function findKey(object, predicate) { return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); } /** * This method is like `_.findKey` except that it iterates over elements of * a collection in the opposite order. * * @static * @memberOf _ * @since 2.0.0 * @category Object * @param {Object} object The object to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {string|undefined} Returns the key of the matched element, * else `undefined`. * @example * * var users = { * 'barney': { 'age': 36, 'active': true }, * 'fred': { 'age': 40, 'active': false }, * 'pebbles': { 'age': 1, 'active': true } * }; * * _.findLastKey(users, function(o) { return o.age < 40; }); * // => returns 'pebbles' assuming `_.findKey` returns 'barney' * * // The `_.matches` iteratee shorthand. * _.findLastKey(users, { 'age': 36, 'active': true }); * // => 'barney' * * // The `_.matchesProperty` iteratee shorthand. * _.findLastKey(users, ['active', false]); * // => 'fred' * * // The `_.property` iteratee shorthand. * _.findLastKey(users, 'active'); * // => 'pebbles' */ function findLastKey(object, predicate) { return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); } /** * Iterates over own and inherited enumerable string keyed properties of an * object and invokes `iteratee` for each property. The iteratee is invoked * with three arguments: (value, key, object). Iteratee functions may exit * iteration early by explicitly returning `false`. * * @static * @memberOf _ * @since 0.3.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns `object`. * @see _.forInRight * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.forIn(new Foo, function(value, key) { * console.log(key); * }); * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). */ function forIn(object, iteratee) { return object == null ? object : baseFor(object, getIteratee(iteratee, 3), keysIn); } /** * This method is like `_.forIn` except that it iterates over properties of * `object` in the opposite order. * * @static * @memberOf _ * @since 2.0.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns `object`. * @see _.forIn * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.forInRight(new Foo, function(value, key) { * console.log(key); * }); * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. */ function forInRight(object, iteratee) { return object == null ? object : baseForRight(object, getIteratee(iteratee, 3), keysIn); } /** * Iterates over own enumerable string keyed properties of an object and * invokes `iteratee` for each property. The iteratee is invoked with three * arguments: (value, key, object). Iteratee functions may exit iteration * early by explicitly returning `false`. * * @static * @memberOf _ * @since 0.3.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns `object`. * @see _.forOwnRight * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.forOwn(new Foo, function(value, key) { * console.log(key); * }); * // => Logs 'a' then 'b' (iteration order is not guaranteed). */ function forOwn(object, iteratee) { return object && baseForOwn(object, getIteratee(iteratee, 3)); } /** * This method is like `_.forOwn` except that it iterates over properties of * `object` in the opposite order. * * @static * @memberOf _ * @since 2.0.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns `object`. * @see _.forOwn * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.forOwnRight(new Foo, function(value, key) { * console.log(key); * }); * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. */ function forOwnRight(object, iteratee) { return object && baseForOwnRight(object, getIteratee(iteratee, 3)); } /** * Creates an array of function property names from own enumerable properties * of `object`. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The object to inspect. * @returns {Array} Returns the function names. * @see _.functionsIn * @example * * function Foo() { * this.a = _.constant('a'); * this.b = _.constant('b'); * } * * Foo.prototype.c = _.constant('c'); * * _.functions(new Foo); * // => ['a', 'b'] */ function functions(object) { return object == null ? [] : baseFunctions(object, keys(object)); } /** * Creates an array of function property names from own and inherited * enumerable properties of `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The object to inspect. * @returns {Array} Returns the function names. * @see _.functions * @example * * function Foo() { * this.a = _.constant('a'); * this.b = _.constant('b'); * } * * Foo.prototype.c = _.constant('c'); * * _.functionsIn(new Foo); * // => ['a', 'b', 'c'] */ function functionsIn(object) { return object == null ? [] : baseFunctions(object, keysIn(object)); } /** * Gets the value at `path` of `object`. If the resolved value is * `undefined`, the `defaultValue` is returned in its place. * * @static * @memberOf _ * @since 3.7.0 * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path of the property to get. * @param {*} [defaultValue] The value returned for `undefined` resolved values. * @returns {*} Returns the resolved value. * @example * * var object = { 'a': [{ 'b': { 'c': 3 } }] }; * * _.get(object, 'a[0].b.c'); * // => 3 * * _.get(object, ['a', '0', 'b', 'c']); * // => 3 * * _.get(object, 'a.b.c', 'default'); * // => 'default' */ function get(object, path, defaultValue) { var result = object == null ? undefined : baseGet(object, path); return result === undefined ? defaultValue : result; } /** * Checks if `path` is a direct property of `object`. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path to check. * @returns {boolean} Returns `true` if `path` exists, else `false`. * @example * * var object = { 'a': { 'b': 2 } }; * var other = _.create({ 'a': _.create({ 'b': 2 }) }); * * _.has(object, 'a'); * // => true * * _.has(object, 'a.b'); * // => true * * _.has(object, ['a', 'b']); * // => true * * _.has(other, 'a'); * // => false */ function has(object, path) { return object != null && hasPath(object, path, baseHas); } /** * Checks if `path` is a direct or inherited property of `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path to check. * @returns {boolean} Returns `true` if `path` exists, else `false`. * @example * * var object = _.create({ 'a': _.create({ 'b': 2 }) }); * * _.hasIn(object, 'a'); * // => true * * _.hasIn(object, 'a.b'); * // => true * * _.hasIn(object, ['a', 'b']); * // => true * * _.hasIn(object, 'b'); * // => false */ function hasIn(object, path) { return object != null && hasPath(object, path, baseHasIn); } /** * Creates an object composed of the inverted keys and values of `object`. * If `object` contains duplicate values, subsequent values overwrite * property assignments of previous values. * * @static * @memberOf _ * @since 0.7.0 * @category Object * @param {Object} object The object to invert. * @returns {Object} Returns the new inverted object. * @example * * var object = { 'a': 1, 'b': 2, 'c': 1 }; * * _.invert(object); * // => { '1': 'c', '2': 'b' } */ var invert = createInverter(function(result, value, key) { if (value != null && typeof value.toString != 'function') { value = nativeObjectToString.call(value); } result[value] = key; }, constant(identity)); /** * This method is like `_.invert` except that the inverted object is generated * from the results of running each element of `object` thru `iteratee`. The * corresponding inverted value of each inverted key is an array of keys * responsible for generating the inverted value. The iteratee is invoked * with one argument: (value). * * @static * @memberOf _ * @since 4.1.0 * @category Object * @param {Object} object The object to invert. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Object} Returns the new inverted object. * @example * * var object = { 'a': 1, 'b': 2, 'c': 1 }; * * _.invertBy(object); * // => { '1': ['a', 'c'], '2': ['b'] } * * _.invertBy(object, function(value) { * return 'group' + value; * }); * // => { 'group1': ['a', 'c'], 'group2': ['b'] } */ var invertBy = createInverter(function(result, value, key) { if (value != null && typeof value.toString != 'function') { value = nativeObjectToString.call(value); } if (hasOwnProperty.call(result, value)) { result[value].push(key); } else { result[value] = [key]; } }, getIteratee); /** * Invokes the method at `path` of `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path of the method to invoke. * @param {...*} [args] The arguments to invoke the method with. * @returns {*} Returns the result of the invoked method. * @example * * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; * * _.invoke(object, 'a[0].b.c.slice', 1, 3); * // => [2, 3] */ var invoke = baseRest(baseInvoke); /** * Creates an array of the own enumerable property names of `object`. * * **Note:** Non-object values are coerced to objects. See the * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) * for more details. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the array of property names. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.keys(new Foo); * // => ['a', 'b'] (iteration order is not guaranteed) * * _.keys('hi'); * // => ['0', '1'] */ function keys(object) { return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); } /** * Creates an array of the own and inherited enumerable property names of `object`. * * **Note:** Non-object values are coerced to objects. * * @static * @memberOf _ * @since 3.0.0 * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the array of property names. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.keysIn(new Foo); * // => ['a', 'b', 'c'] (iteration order is not guaranteed) */ function keysIn(object) { return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); } /** * The opposite of `_.mapValues`; this method creates an object with the * same values as `object` and keys generated by running each own enumerable * string keyed property of `object` thru `iteratee`. The iteratee is invoked * with three arguments: (value, key, object). * * @static * @memberOf _ * @since 3.8.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns the new mapped object. * @see _.mapValues * @example * * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { * return key + value; * }); * // => { 'a1': 1, 'b2': 2 } */ function mapKeys(object, iteratee) { var result = {}; iteratee = getIteratee(iteratee, 3); baseForOwn(object, function(value, key, object) { baseAssignValue(result, iteratee(value, key, object), value); }); return result; } /** * Creates an object with the same keys as `object` and values generated * by running each own enumerable string keyed property of `object` thru * `iteratee`. The iteratee is invoked with three arguments: * (value, key, object). * * @static * @memberOf _ * @since 2.4.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @returns {Object} Returns the new mapped object. * @see _.mapKeys * @example * * var users = { * 'fred': { 'user': 'fred', 'age': 40 }, * 'pebbles': { 'user': 'pebbles', 'age': 1 } * }; * * _.mapValues(users, function(o) { return o.age; }); * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) * * // The `_.property` iteratee shorthand. * _.mapValues(users, 'age'); * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) */ function mapValues(object, iteratee) { var result = {}; iteratee = getIteratee(iteratee, 3); baseForOwn(object, function(value, key, object) { baseAssignValue(result, key, iteratee(value, key, object)); }); return result; } /** * This method is like `_.assign` except that it recursively merges own and * inherited enumerable string keyed properties of source objects into the * destination object. Source properties that resolve to `undefined` are * skipped if a destination value exists. Array and plain object properties * are merged recursively. Other objects and value types are overridden by * assignment. Source objects are applied from left to right. Subsequent * sources overwrite property assignments of previous sources. * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 0.5.0 * @category Object * @param {Object} object The destination object. * @param {...Object} [sources] The source objects. * @returns {Object} Returns `object`. * @example * * var object = { * 'a': [{ 'b': 2 }, { 'd': 4 }] * }; * * var other = { * 'a': [{ 'c': 3 }, { 'e': 5 }] * }; * * _.merge(object, other); * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } */ var merge = createAssigner(function(object, source, srcIndex) { baseMerge(object, source, srcIndex); }); /** * This method is like `_.merge` except that it accepts `customizer` which * is invoked to produce the merged values of the destination and source * properties. If `customizer` returns `undefined`, merging is handled by the * method instead. The `customizer` is invoked with six arguments: * (objValue, srcValue, key, object, source, stack). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The destination object. * @param {...Object} sources The source objects. * @param {Function} customizer The function to customize assigned values. * @returns {Object} Returns `object`. * @example * * function customizer(objValue, srcValue) { * if (_.isArray(objValue)) { * return objValue.concat(srcValue); * } * } * * var object = { 'a': [1], 'b': [2] }; * var other = { 'a': [3], 'b': [4] }; * * _.mergeWith(object, other, customizer); * // => { 'a': [1, 3], 'b': [2, 4] } */ var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { baseMerge(object, source, srcIndex, customizer); }); /** * The opposite of `_.pick`; this method creates an object composed of the * own and inherited enumerable property paths of `object` that are not omitted. * * **Note:** This method is considerably slower than `_.pick`. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The source object. * @param {...(string|string[])} [paths] The property paths to omit. * @returns {Object} Returns the new object. * @example * * var object = { 'a': 1, 'b': '2', 'c': 3 }; * * _.omit(object, ['a', 'c']); * // => { 'b': '2' } */ var omit = flatRest(function(object, paths) { var result = {}; if (object == null) { return result; } var isDeep = false; paths = arrayMap(paths, function(path) { path = castPath(path, object); isDeep || (isDeep = path.length > 1); return path; }); copyObject(object, getAllKeysIn(object), result); if (isDeep) { result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); } var length = paths.length; while (length--) { baseUnset(result, paths[length]); } return result; }); /** * The opposite of `_.pickBy`; this method creates an object composed of * the own and inherited enumerable string keyed properties of `object` that * `predicate` doesn't return truthy for. The predicate is invoked with two * arguments: (value, key). * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The source object. * @param {Function} [predicate=_.identity] The function invoked per property. * @returns {Object} Returns the new object. * @example * * var object = { 'a': 1, 'b': '2', 'c': 3 }; * * _.omitBy(object, _.isNumber); * // => { 'b': '2' } */ function omitBy(object, predicate) { return pickBy(object, negate(getIteratee(predicate))); } /** * Creates an object composed of the picked `object` properties. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The source object. * @param {...(string|string[])} [paths] The property paths to pick. * @returns {Object} Returns the new object. * @example * * var object = { 'a': 1, 'b': '2', 'c': 3 }; * * _.pick(object, ['a', 'c']); * // => { 'a': 1, 'c': 3 } */ var pick = flatRest(function(object, paths) { return object == null ? {} : basePick(object, paths); }); /** * Creates an object composed of the `object` properties `predicate` returns * truthy for. The predicate is invoked with two arguments: (value, key). * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The source object. * @param {Function} [predicate=_.identity] The function invoked per property. * @returns {Object} Returns the new object. * @example * * var object = { 'a': 1, 'b': '2', 'c': 3 }; * * _.pickBy(object, _.isNumber); * // => { 'a': 1, 'c': 3 } */ function pickBy(object, predicate) { if (object == null) { return {}; } var props = arrayMap(getAllKeysIn(object), function(prop) { return [prop]; }); predicate = getIteratee(predicate); return basePickBy(object, props, function(value, path) { return predicate(value, path[0]); }); } /** * This method is like `_.get` except that if the resolved value is a * function it's invoked with the `this` binding of its parent object and * its result is returned. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path of the property to resolve. * @param {*} [defaultValue] The value returned for `undefined` resolved values. * @returns {*} Returns the resolved value. * @example * * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; * * _.result(object, 'a[0].b.c1'); * // => 3 * * _.result(object, 'a[0].b.c2'); * // => 4 * * _.result(object, 'a[0].b.c3', 'default'); * // => 'default' * * _.result(object, 'a[0].b.c3', _.constant('default')); * // => 'default' */ function result(object, path, defaultValue) { path = castPath(path, object); var index = -1, length = path.length; // Ensure the loop is entered when path is empty. if (!length) { length = 1; object = undefined; } while (++index < length) { var value = object == null ? undefined : object[toKey(path[index])]; if (value === undefined) { index = length; value = defaultValue; } object = isFunction(value) ? value.call(object) : value; } return object; } /** * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, * it's created. Arrays are created for missing index properties while objects * are created for all other missing properties. Use `_.setWith` to customize * `path` creation. * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 3.7.0 * @category Object * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {*} value The value to set. * @returns {Object} Returns `object`. * @example * * var object = { 'a': [{ 'b': { 'c': 3 } }] }; * * _.set(object, 'a[0].b.c', 4); * console.log(object.a[0].b.c); * // => 4 * * _.set(object, ['x', '0', 'y', 'z'], 5); * console.log(object.x[0].y.z); * // => 5 */ function set(object, path, value) { return object == null ? object : baseSet(object, path, value); } /** * This method is like `_.set` except that it accepts `customizer` which is * invoked to produce the objects of `path`. If `customizer` returns `undefined` * path creation is handled by the method instead. The `customizer` is invoked * with three arguments: (nsValue, key, nsObject). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {*} value The value to set. * @param {Function} [customizer] The function to customize assigned values. * @returns {Object} Returns `object`. * @example * * var object = {}; * * _.setWith(object, '[0][1]', 'a', Object); * // => { '0': { '1': 'a' } } */ function setWith(object, path, value, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; return object == null ? object : baseSet(object, path, value, customizer); } /** * Creates an array of own enumerable string keyed-value pairs for `object` * which can be consumed by `_.fromPairs`. If `object` is a map or set, its * entries are returned. * * @static * @memberOf _ * @since 4.0.0 * @alias entries * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the key-value pairs. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.toPairs(new Foo); * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) */ var toPairs = createToPairs(keys); /** * Creates an array of own and inherited enumerable string keyed-value pairs * for `object` which can be consumed by `_.fromPairs`. If `object` is a map * or set, its entries are returned. * * @static * @memberOf _ * @since 4.0.0 * @alias entriesIn * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the key-value pairs. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.toPairsIn(new Foo); * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) */ var toPairsIn = createToPairs(keysIn); /** * An alternative to `_.reduce`; this method transforms `object` to a new * `accumulator` object which is the result of running each of its own * enumerable string keyed properties thru `iteratee`, with each invocation * potentially mutating the `accumulator` object. If `accumulator` is not * provided, a new object with the same `[[Prototype]]` will be used. The * iteratee is invoked with four arguments: (accumulator, value, key, object). * Iteratee functions may exit iteration early by explicitly returning `false`. * * @static * @memberOf _ * @since 1.3.0 * @category Object * @param {Object} object The object to iterate over. * @param {Function} [iteratee=_.identity] The function invoked per iteration. * @param {*} [accumulator] The custom accumulator value. * @returns {*} Returns the accumulated value. * @example * * _.transform([2, 3, 4], function(result, n) { * result.push(n *= n); * return n % 2 == 0; * }, []); * // => [4, 9] * * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { * (result[value] || (result[value] = [])).push(key); * }, {}); * // => { '1': ['a', 'c'], '2': ['b'] } */ function transform(object, iteratee, accumulator) { var isArr = isArray(object), isArrLike = isArr || isBuffer(object) || isTypedArray(object); iteratee = getIteratee(iteratee, 4); if (accumulator == null) { var Ctor = object && object.constructor; if (isArrLike) { accumulator = isArr ? new Ctor : []; } else if (isObject(object)) { accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; } else { accumulator = {}; } } (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { return iteratee(accumulator, value, index, object); }); return accumulator; } /** * Removes the property at `path` of `object`. * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.0.0 * @category Object * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to unset. * @returns {boolean} Returns `true` if the property is deleted, else `false`. * @example * * var object = { 'a': [{ 'b': { 'c': 7 } }] }; * _.unset(object, 'a[0].b.c'); * // => true * * console.log(object); * // => { 'a': [{ 'b': {} }] }; * * _.unset(object, ['a', '0', 'b', 'c']); * // => true * * console.log(object); * // => { 'a': [{ 'b': {} }] }; */ function unset(object, path) { return object == null ? true : baseUnset(object, path); } /** * This method is like `_.set` except that accepts `updater` to produce the * value to set. Use `_.updateWith` to customize `path` creation. The `updater` * is invoked with one argument: (value). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.6.0 * @category Object * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {Function} updater The function to produce the updated value. * @returns {Object} Returns `object`. * @example * * var object = { 'a': [{ 'b': { 'c': 3 } }] }; * * _.update(object, 'a[0].b.c', function(n) { return n * n; }); * console.log(object.a[0].b.c); * // => 9 * * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); * console.log(object.x[0].y.z); * // => 0 */ function update(object, path, updater) { return object == null ? object : baseUpdate(object, path, castFunction(updater)); } /** * This method is like `_.update` except that it accepts `customizer` which is * invoked to produce the objects of `path`. If `customizer` returns `undefined` * path creation is handled by the method instead. The `customizer` is invoked * with three arguments: (nsValue, key, nsObject). * * **Note:** This method mutates `object`. * * @static * @memberOf _ * @since 4.6.0 * @category Object * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {Function} updater The function to produce the updated value. * @param {Function} [customizer] The function to customize assigned values. * @returns {Object} Returns `object`. * @example * * var object = {}; * * _.updateWith(object, '[0][1]', _.constant('a'), Object); * // => { '0': { '1': 'a' } } */ function updateWith(object, path, updater, customizer) { customizer = typeof customizer == 'function' ? customizer : undefined; return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); } /** * Creates an array of the own enumerable string keyed property values of `object`. * * **Note:** Non-object values are coerced to objects. * * @static * @since 0.1.0 * @memberOf _ * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the array of property values. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.values(new Foo); * // => [1, 2] (iteration order is not guaranteed) * * _.values('hi'); * // => ['h', 'i'] */ function values(object) { return object == null ? [] : baseValues(object, keys(object)); } /** * Creates an array of the own and inherited enumerable string keyed property * values of `object`. * * **Note:** Non-object values are coerced to objects. * * @static * @memberOf _ * @since 3.0.0 * @category Object * @param {Object} object The object to query. * @returns {Array} Returns the array of property values. * @example * * function Foo() { * this.a = 1; * this.b = 2; * } * * Foo.prototype.c = 3; * * _.valuesIn(new Foo); * // => [1, 2, 3] (iteration order is not guaranteed) */ function valuesIn(object) { return object == null ? [] : baseValues(object, keysIn(object)); } /*------------------------------------------------------------------------*/ /** * Clamps `number` within the inclusive `lower` and `upper` bounds. * * @static * @memberOf _ * @since 4.0.0 * @category Number * @param {number} number The number to clamp. * @param {number} [lower] The lower bound. * @param {number} upper The upper bound. * @returns {number} Returns the clamped number. * @example * * _.clamp(-10, -5, 5); * // => -5 * * _.clamp(10, -5, 5); * // => 5 */ function clamp(number, lower, upper) { if (upper === undefined) { upper = lower; lower = undefined; } if (upper !== undefined) { upper = toNumber(upper); upper = upper === upper ? upper : 0; } if (lower !== undefined) { lower = toNumber(lower); lower = lower === lower ? lower : 0; } return baseClamp(toNumber(number), lower, upper); } /** * Checks if `n` is between `start` and up to, but not including, `end`. If * `end` is not specified, it's set to `start` with `start` then set to `0`. * If `start` is greater than `end` the params are swapped to support * negative ranges. * * @static * @memberOf _ * @since 3.3.0 * @category Number * @param {number} number The number to check. * @param {number} [start=0] The start of the range. * @param {number} end The end of the range. * @returns {boolean} Returns `true` if `number` is in the range, else `false`. * @see _.range, _.rangeRight * @example * * _.inRange(3, 2, 4); * // => true * * _.inRange(4, 8); * // => true * * _.inRange(4, 2); * // => false * * _.inRange(2, 2); * // => false * * _.inRange(1.2, 2); * // => true * * _.inRange(5.2, 4); * // => false * * _.inRange(-3, -2, -6); * // => true */ function inRange(number, start, end) { start = toFinite(start); if (end === undefined) { end = start; start = 0; } else { end = toFinite(end); } number = toNumber(number); return baseInRange(number, start, end); } /** * Produces a random number between the inclusive `lower` and `upper` bounds. * If only one argument is provided a number between `0` and the given number * is returned. If `floating` is `true`, or either `lower` or `upper` are * floats, a floating-point number is returned instead of an integer. * * **Note:** JavaScript follows the IEEE-754 standard for resolving * floating-point values which can produce unexpected results. * * @static * @memberOf _ * @since 0.7.0 * @category Number * @param {number} [lower=0] The lower bound. * @param {number} [upper=1] The upper bound. * @param {boolean} [floating] Specify returning a floating-point number. * @returns {number} Returns the random number. * @example * * _.random(0, 5); * // => an integer between 0 and 5 * * _.random(5); * // => also an integer between 0 and 5 * * _.random(5, true); * // => a floating-point number between 0 and 5 * * _.random(1.2, 5.2); * // => a floating-point number between 1.2 and 5.2 */ function random(lower, upper, floating) { if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { upper = floating = undefined; } if (floating === undefined) { if (typeof upper == 'boolean') { floating = upper; upper = undefined; } else if (typeof lower == 'boolean') { floating = lower; lower = undefined; } } if (lower === undefined && upper === undefined) { lower = 0; upper = 1; } else { lower = toFinite(lower); if (upper === undefined) { upper = lower; lower = 0; } else { upper = toFinite(upper); } } if (lower > upper) { var temp = lower; lower = upper; upper = temp; } if (floating || lower % 1 || upper % 1) { var rand = nativeRandom(); return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); } return baseRandom(lower, upper); } /*------------------------------------------------------------------------*/ /** * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the camel cased string. * @example * * _.camelCase('Foo Bar'); * // => 'fooBar' * * _.camelCase('--foo-bar--'); * // => 'fooBar' * * _.camelCase('__FOO_BAR__'); * // => 'fooBar' */ var camelCase = createCompounder(function(result, word, index) { word = word.toLowerCase(); return result + (index ? capitalize(word) : word); }); /** * Converts the first character of `string` to upper case and the remaining * to lower case. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to capitalize. * @returns {string} Returns the capitalized string. * @example * * _.capitalize('FRED'); * // => 'Fred' */ function capitalize(string) { return upperFirst(toString(string).toLowerCase()); } /** * Deburrs `string` by converting * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) * letters to basic Latin letters and removing * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to deburr. * @returns {string} Returns the deburred string. * @example * * _.deburr('déjà vu'); * // => 'deja vu' */ function deburr(string) { string = toString(string); return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); } /** * Checks if `string` ends with the given target string. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to inspect. * @param {string} [target] The string to search for. * @param {number} [position=string.length] The position to search up to. * @returns {boolean} Returns `true` if `string` ends with `target`, * else `false`. * @example * * _.endsWith('abc', 'c'); * // => true * * _.endsWith('abc', 'b'); * // => false * * _.endsWith('abc', 'b', 2); * // => true */ function endsWith(string, target, position) { string = toString(string); target = baseToString(target); var length = string.length; position = position === undefined ? length : baseClamp(toInteger(position), 0, length); var end = position; position -= target.length; return position >= 0 && string.slice(position, end) == target; } /** * Converts the characters "&", "<", ">", '"', and "'" in `string` to their * corresponding HTML entities. * * **Note:** No other characters are escaped. To escape additional * characters use a third-party library like [_he_](https://mths.be/he). * * Though the ">" character is escaped for symmetry, characters like * ">" and "/" don't need escaping in HTML and have no special meaning * unless they're part of a tag or unquoted attribute value. See * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) * (under "semi-related fun fact") for more details. * * When working with HTML you should always * [quote attribute values](http://wonko.com/post/html-escaping) to reduce * XSS vectors. * * @static * @since 0.1.0 * @memberOf _ * @category String * @param {string} [string=''] The string to escape. * @returns {string} Returns the escaped string. * @example * * _.escape('fred, barney, & pebbles'); * // => 'fred, barney, & pebbles' */ function escape(string) { string = toString(string); return (string && reHasUnescapedHtml.test(string)) ? string.replace(reUnescapedHtml, escapeHtmlChar) : string; } /** * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to escape. * @returns {string} Returns the escaped string. * @example * * _.escapeRegExp('[lodash](https://lodash.com/)'); * // => '\[lodash\]\(https://lodash\.com/\)' */ function escapeRegExp(string) { string = toString(string); return (string && reHasRegExpChar.test(string)) ? string.replace(reRegExpChar, '\\$&') : string; } /** * Converts `string` to * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the kebab cased string. * @example * * _.kebabCase('Foo Bar'); * // => 'foo-bar' * * _.kebabCase('fooBar'); * // => 'foo-bar' * * _.kebabCase('__FOO_BAR__'); * // => 'foo-bar' */ var kebabCase = createCompounder(function(result, word, index) { return result + (index ? '-' : '') + word.toLowerCase(); }); /** * Converts `string`, as space separated words, to lower case. * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the lower cased string. * @example * * _.lowerCase('--Foo-Bar--'); * // => 'foo bar' * * _.lowerCase('fooBar'); * // => 'foo bar' * * _.lowerCase('__FOO_BAR__'); * // => 'foo bar' */ var lowerCase = createCompounder(function(result, word, index) { return result + (index ? ' ' : '') + word.toLowerCase(); }); /** * Converts the first character of `string` to lower case. * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the converted string. * @example * * _.lowerFirst('Fred'); * // => 'fred' * * _.lowerFirst('FRED'); * // => 'fRED' */ var lowerFirst = createCaseFirst('toLowerCase'); /** * Pads `string` on the left and right sides if it's shorter than `length`. * Padding characters are truncated if they can't be evenly divided by `length`. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to pad. * @param {number} [length=0] The padding length. * @param {string} [chars=' '] The string used as padding. * @returns {string} Returns the padded string. * @example * * _.pad('abc', 8); * // => ' abc ' * * _.pad('abc', 8, '_-'); * // => '_-abc_-_' * * _.pad('abc', 3); * // => 'abc' */ function pad(string, length, chars) { string = toString(string); length = toInteger(length); var strLength = length ? stringSize(string) : 0; if (!length || strLength >= length) { return string; } var mid = (length - strLength) / 2; return ( createPadding(nativeFloor(mid), chars) + string + createPadding(nativeCeil(mid), chars) ); } /** * Pads `string` on the right side if it's shorter than `length`. Padding * characters are truncated if they exceed `length`. * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to pad. * @param {number} [length=0] The padding length. * @param {string} [chars=' '] The string used as padding. * @returns {string} Returns the padded string. * @example * * _.padEnd('abc', 6); * // => 'abc ' * * _.padEnd('abc', 6, '_-'); * // => 'abc_-_' * * _.padEnd('abc', 3); * // => 'abc' */ function padEnd(string, length, chars) { string = toString(string); length = toInteger(length); var strLength = length ? stringSize(string) : 0; return (length && strLength < length) ? (string + createPadding(length - strLength, chars)) : string; } /** * Pads `string` on the left side if it's shorter than `length`. Padding * characters are truncated if they exceed `length`. * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to pad. * @param {number} [length=0] The padding length. * @param {string} [chars=' '] The string used as padding. * @returns {string} Returns the padded string. * @example * * _.padStart('abc', 6); * // => ' abc' * * _.padStart('abc', 6, '_-'); * // => '_-_abc' * * _.padStart('abc', 3); * // => 'abc' */ function padStart(string, length, chars) { string = toString(string); length = toInteger(length); var strLength = length ? stringSize(string) : 0; return (length && strLength < length) ? (createPadding(length - strLength, chars) + string) : string; } /** * Converts `string` to an integer of the specified radix. If `radix` is * `undefined` or `0`, a `radix` of `10` is used unless `value` is a * hexadecimal, in which case a `radix` of `16` is used. * * **Note:** This method aligns with the * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. * * @static * @memberOf _ * @since 1.1.0 * @category String * @param {string} string The string to convert. * @param {number} [radix=10] The radix to interpret `value` by. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {number} Returns the converted integer. * @example * * _.parseInt('08'); * // => 8 * * _.map(['6', '08', '10'], _.parseInt); * // => [6, 8, 10] */ function parseInt(string, radix, guard) { if (guard || radix == null) { radix = 0; } else if (radix) { radix = +radix; } return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); } /** * Repeats the given string `n` times. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to repeat. * @param {number} [n=1] The number of times to repeat the string. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {string} Returns the repeated string. * @example * * _.repeat('*', 3); * // => '***' * * _.repeat('abc', 2); * // => 'abcabc' * * _.repeat('abc', 0); * // => '' */ function repeat(string, n, guard) { if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { n = 1; } else { n = toInteger(n); } return baseRepeat(toString(string), n); } /** * Replaces matches for `pattern` in `string` with `replacement`. * * **Note:** This method is based on * [`String#replace`](https://mdn.io/String/replace). * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to modify. * @param {RegExp|string} pattern The pattern to replace. * @param {Function|string} replacement The match replacement. * @returns {string} Returns the modified string. * @example * * _.replace('Hi Fred', 'Fred', 'Barney'); * // => 'Hi Barney' */ function replace() { var args = arguments, string = toString(args[0]); return args.length < 3 ? string : string.replace(args[1], args[2]); } /** * Converts `string` to * [snake case](https://en.wikipedia.org/wiki/Snake_case). * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the snake cased string. * @example * * _.snakeCase('Foo Bar'); * // => 'foo_bar' * * _.snakeCase('fooBar'); * // => 'foo_bar' * * _.snakeCase('--FOO-BAR--'); * // => 'foo_bar' */ var snakeCase = createCompounder(function(result, word, index) { return result + (index ? '_' : '') + word.toLowerCase(); }); /** * Splits `string` by `separator`. * * **Note:** This method is based on * [`String#split`](https://mdn.io/String/split). * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to split. * @param {RegExp|string} separator The separator pattern to split by. * @param {number} [limit] The length to truncate results to. * @returns {Array} Returns the string segments. * @example * * _.split('a-b-c', '-', 2); * // => ['a', 'b'] */ function split(string, separator, limit) { if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { separator = limit = undefined; } limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; if (!limit) { return []; } string = toString(string); if (string && ( typeof separator == 'string' || (separator != null && !isRegExp(separator)) )) { separator = baseToString(separator); if (!separator && hasUnicode(string)) { return castSlice(stringToArray(string), 0, limit); } } return string.split(separator, limit); } /** * Converts `string` to * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). * * @static * @memberOf _ * @since 3.1.0 * @category String * @param {string} [string=''] The string to convert. * @returns {string} Returns the start cased string. * @example * * _.startCase('--foo-bar--'); * // => 'Foo Bar' * * _.startCase('fooBar'); * // => 'Foo Bar' * * _.startCase('__FOO_BAR__'); * // => 'FOO BAR' */ var startCase = createCompounder(function(result, word, index) { return result + (index ? ' ' : '') + upperFirst(word); }); /** * Checks if `string` starts with the given target string. * * @static * @memberOf _ * @since 3.0.0 * @category String * @param {string} [string=''] The string to inspect. * @param {string} [target] The string to search for. * @param {number} [position=0] The position to search from. * @returns {boolean} Returns `true` if `string` starts with `target`, * else `false`. * @example * * _.startsWith('abc', 'a'); * // => true * * _.startsWith('abc', 'b'); * // => false * * _.startsWith('abc', 'b', 1); * // => true */ function startsWith(string, target, position) { string = toString(string); position = position == null ? 0 : baseClamp(toInteger(position), 0, string.length); target = baseToString(target); return string.slice(position, position + target.length) == target; } /** * Creates a compiled template function that can interpolate data properties * in "interpolate" delimiters, HTML-escape interpolated data properties in * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data * properties may be accessed as free variables in the template. If a setting * object is given, it takes precedence over `_.templateSettings` values. * * **Note:** In the development build `_.template` utilizes * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) * for easier debugging. * * For more information on precompiling templates see * [lodash's custom builds documentation](https://lodash.com/custom-builds). * * For more information on Chrome extension sandboxes see * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). * * @static * @since 0.1.0 * @memberOf _ * @category String * @param {string} [string=''] The template string. * @param {Object} [options={}] The options object. * @param {RegExp} [options.escape=_.templateSettings.escape] * The HTML "escape" delimiter. * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] * The "evaluate" delimiter. * @param {Object} [options.imports=_.templateSettings.imports] * An object to import into the template as free variables. * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] * The "interpolate" delimiter. * @param {string} [options.sourceURL='lodash.templateSources[n]'] * The sourceURL of the compiled template. * @param {string} [options.variable='obj'] * The data object variable name. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. * @returns {Function} Returns the compiled template function. * @example * * // Use the "interpolate" delimiter to create a compiled template. * var compiled = _.template('hello <%= user %>!'); * compiled({ 'user': 'fred' }); * // => 'hello fred!' * * // Use the HTML "escape" delimiter to escape data property values. * var compiled = _.template('<%- value %>'); * compiled({ 'value': '