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Configuration error
var arrayFilter = require('./_arrayFilter'), | |
arrayMap = require('./_arrayMap'), | |
baseProperty = require('./_baseProperty'), | |
baseTimes = require('./_baseTimes'), | |
isArrayLikeObject = require('./isArrayLikeObject'); | |
/* Built-in method references for those with the same name as other `lodash` methods. */ | |
var nativeMax = Math.max; | |
/** | |
* 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)); | |
}); | |
} | |
module.exports = unzip; | |