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November 26, 2013 22:05
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ECMA Script fixes for IE
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'use strict'; | |
// Add ECMA262-5 method binding if not supported natively | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind | |
if (!Function.prototype.bind) { | |
Function.prototype.bind = function (oThis) { | |
if (typeof this !== "function") { | |
// closest thing possible to the ECMAScript 5 internal IsCallable function | |
throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable"); | |
} | |
var aArgs = Array.prototype.slice.call(arguments, 1), | |
fToBind = this, | |
fNOP = function () {}, | |
fBound = function () { | |
return fToBind.apply(this instanceof fNOP && oThis | |
? this | |
: oThis, | |
aArgs.concat(Array.prototype.slice.call(arguments))); | |
}; | |
fNOP.prototype = this.prototype; | |
fBound.prototype = new fNOP(); | |
return fBound; | |
}; | |
} | |
// Add ECMA262-5 string trim if not supported natively | |
//https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim | |
if (!String.prototype.trim) { | |
String.prototype.trim = function () { | |
return this.replace(/^\s+|\s+$/g, ''); | |
}; | |
} | |
// Add ECMA262-5 Array methods if not supported natively | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf | |
if (!Array.prototype.indexOf) { | |
Array.prototype.indexOf = function (searchElement , fromIndex) { | |
var i, | |
pivot = (fromIndex) ? fromIndex : 0, | |
length; | |
if (!this) { | |
throw new TypeError(); | |
} | |
length = this.length; | |
if (length === 0 || pivot >= length) { | |
return -1; | |
} | |
if (pivot < 0) { | |
pivot = length - Math.abs(pivot); | |
} | |
for (i = pivot; i < length; i++) { | |
if (this[i] === searchElement) { | |
return i; | |
} | |
} | |
return -1; | |
}; | |
} | |
//https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf | |
if (!Array.prototype.lastIndexOf) { | |
Array.prototype.lastIndexOf = function(searchElement /*, fromIndex*/) { | |
'use strict'; | |
if (this == null) { | |
throw new TypeError(); | |
} | |
var n, k, | |
t = Object(this), | |
len = t.length >>> 0; | |
if (len === 0) { | |
return -1; | |
} | |
n = len; | |
if (arguments.length > 1) { | |
n = Number(arguments[1]); | |
if (n != n) { | |
n = 0; | |
} | |
else if (n != 0 && n != (1 / 0) && n != -(1 / 0)) { | |
n = (n > 0 || -1) * Math.floor(Math.abs(n)); | |
} | |
} | |
for (k = n >= 0 | |
? Math.min(n, len - 1) | |
: len - Math.abs(n); k >= 0; k--) { | |
if (k in t && t[k] === searchElement) { | |
return k; | |
} | |
} | |
return -1; | |
}; | |
} | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach | |
if (!Array.prototype.forEach) { | |
Array.prototype.forEach = function (fn, scope) { | |
'use strict'; | |
var i, len; | |
for (i = 0, len = this.length; i < len; ++i) { | |
if (i in this) { | |
fn.call(scope, this[i], i, this); | |
} | |
} | |
}; | |
} | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map | |
// Production steps of ECMA-262, Edition 5, 15.4.4.19 | |
// Reference: http://es5.github.com/#x15.4.4.19 | |
if (!Array.prototype.map) { | |
Array.prototype.map = function(callback, thisArg) { | |
var T, A, k; | |
if (this == null) { | |
throw new TypeError(" this is null or not defined"); | |
} | |
// 1. Let O be the result of calling ToObject passing the |this| value as the argument. | |
var O = Object(this); | |
// 2. Let lenValue be the result of calling the Get internal method of O with the argument "length". | |
// 3. Let len be ToUint32(lenValue). | |
var len = O.length >>> 0; | |
// 4. If IsCallable(callback) is false, throw a TypeError exception. | |
// See: http://es5.github.com/#x9.11 | |
if (typeof callback !== "function") { | |
throw new TypeError(callback + " is not a function"); | |
} | |
// 5. If thisArg was supplied, let T be thisArg; else let T be undefined. | |
if (arguments.length > 1) { | |
T = thisArg; | |
} | |
// 6. Let A be a new array created as if by the expression new Array(len) where Array is | |
// the standard built-in constructor with that name and len is the value of len. | |
A = new Array(len); | |
// 7. Let k be 0 | |
k = 0; | |
// 8. Repeat, while k < len | |
while(k < len) { | |
var kValue, mappedValue; | |
// a. Let Pk be ToString(k). | |
// This is implicit for LHS operands of the in operator | |
// b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk. | |
// This step can be combined with c | |
// c. If kPresent is true, then | |
if (k in O) { | |
// i. Let kValue be the result of calling the Get internal method of O with argument Pk. | |
kValue = O[ k ]; | |
// ii. Let mappedValue be the result of calling the Call internal method of callback | |
// with T as the this value and argument list containing kValue, k, and O. | |
mappedValue = callback.call(T, kValue, k, O); | |
// iii. Call the DefineOwnProperty internal method of A with arguments | |
// Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true}, | |
// and false. | |
// In browsers that support Object.defineProperty, use the following: | |
// Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true }); | |
// For best browser support, use the following: | |
A[ k ] = mappedValue; | |
} | |
// d. Increase k by 1. | |
k++; | |
} | |
// 9. return A | |
return A; | |
}; | |
} | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter | |
if (!Array.prototype.filter) | |
{ | |
Array.prototype.filter = function(fun /*, thisp */) | |
{ | |
"use strict"; | |
if (this == null) | |
throw new TypeError(); | |
var t = Object(this); | |
var len = t.length >>> 0; | |
if (typeof fun != "function") | |
throw new TypeError(); | |
var res = []; | |
var thisp = arguments[1]; | |
for (var i = 0; i < len; i++) | |
{ | |
if (i in t) | |
{ | |
var val = t[i]; // in case fun mutates this | |
if (fun.call(thisp, val, i, t)) | |
res.push(val); | |
} | |
} | |
return res; | |
}; | |
} | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every | |
if (!Array.prototype.every) { | |
Array.prototype.every = function(fun /*, thisp */) { | |
'use strict'; | |
var t, len, i, thisp; | |
if (this == null) { | |
throw new TypeError(); | |
} | |
t = Object(this); | |
len = t.length >>> 0; | |
if (typeof fun !== 'function') { | |
throw new TypeError(); | |
} | |
thisp = arguments[1]; | |
for (i = 0; i < len; i++) { | |
if (i in t && !fun.call(thisp, t[i], i, t)) { | |
return false; | |
} | |
} | |
return true; | |
}; | |
} | |
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some | |
if (!Array.prototype.some) { | |
Array.prototype.some = function(fun /*, thisp */) { | |
'use strict'; | |
if (this == null) { | |
throw new TypeError(); | |
} | |
var thisp, i, | |
t = Object(this), | |
len = t.length >>> 0; | |
if (typeof fun !== 'function') { | |
throw new TypeError(); | |
} | |
thisp = arguments[1]; | |
for (i = 0; i < len; i++) { | |
if (i in t && fun.call(thisp, t[i], i, t)) { | |
return true; | |
} | |
} | |
return false; | |
}; | |
} |
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