|
(function () { |
|
if (typeof Object.freeze != 'function') { |
|
Object.freeze = function (obj) { return obj; } |
|
} |
|
if (typeof Object.create != 'function') { |
|
Object.create = (function() { |
|
var Temp = function() {}; |
|
return function (prototype) { |
|
if(prototype !== Object(prototype) && prototype !== null) { |
|
throw TypeError('Argument must be an object or null'); |
|
} |
|
if (prototype === null) { |
|
throw Error('null [[Prototype]] not supported'); |
|
} |
|
Temp.prototype = prototype; |
|
var result = new Temp(); |
|
Temp.prototype = null; |
|
return result; |
|
}; |
|
})(); |
|
} |
|
|
|
if (typeof Object.defineProperty != 'function') { |
|
Object.defineProperty = function defineProperty(object, property, descriptor) { |
|
if ('value' in descriptor) { |
|
object[property] = descriptor.value; |
|
} |
|
return object; |
|
}; |
|
} |
|
|
|
if (!Array.prototype.indexOf) { |
|
Array.prototype.indexOf = function (searchElement, fromIndex) { |
|
var k; |
|
if (this == null) { |
|
throw new TypeError('"this" is null or not defined'); |
|
} |
|
var o = Object(this); |
|
var len = o.length >>> 0; |
|
if (len === 0) { |
|
return -1; |
|
} |
|
var n = +fromIndex || 0; |
|
if (Math.abs(n) === Infinity) { |
|
n = 0; |
|
} |
|
if (n >= len) { |
|
return -1; |
|
} |
|
k = Math.max(n >= 0 ? n : len - Math.abs(n), 0); |
|
while (k < len) { |
|
if (k in o && o[k] === searchElement) { |
|
return k; |
|
} |
|
k++; |
|
} |
|
return -1; |
|
}; |
|
} |
|
})(); |
|
|