ie.js

'use strict';
// Patch IE's javascript support
// https://stackoverflow.com/questions/2790001/fixing-javascript-array-functions-in-internet-explorer-indexof-foreach-etc

// Add ECMA262-5 method binding if not supported natively
//
if (!('bind' in Function.prototype)) {
  Function.prototype.bind = function (owner) {
    var that = this;
    if (arguments.length <= 1) {
      return function () {
        return that.apply(owner, arguments);
      };
    } else {
      var args = Array.prototype.slice.call(arguments, 1);
      return function () {
        return that.apply(owner, arguments.length === 0 ? args : args.concat(Array.prototype.slice.call(arguments)));
      };
    }
  };
}

// Add ECMA262-5 string trim if not supported natively
//
if (!('trim' in String.prototype)) {
  String.prototype.trim = function () {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  };
}

// Add ECMA262-5 Array methods if not supported natively
//
if (!('indexOf' in Array.prototype)) {
  Array.prototype.indexOf = function (find, i /*opt*/) {
    if (i === undefined) i = 0;
    if (i < 0) i += this.length;
    if (i < 0) i = 0;
    for (var n = this.length; i < n; i++)
      if (i in this && this[i] === find)
        return i;
    return -1;
  };
}
if (!('lastIndexOf' in Array.prototype)) {
  Array.prototype.lastIndexOf = function (find, i /*opt*/) {
    if (i === undefined) i = this.length - 1;
    if (i < 0) i += this.length;
    if (i > this.length - 1) i = this.length - 1;
    for (i++; i-- > 0;) /* i++ because from-argument is sadly inclusive */
      if (i in this && this[i] === find)
        return i;
    return -1;
  };
}
if (!('forEach' in Array.prototype)) {
  Array.prototype.forEach = function (action, that /*opt*/) {
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this)
        action.call(that, this[i], i, this);
  };
}
if (!('forEach' in NodeList.prototype)) {
  NodeList.prototype.forEach = function (action, that /*opt*/) {
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this)
        action.call(that, this[i], i, this);
  };
}
if (!('map' in Array.prototype)) {
  Array.prototype.map = function (mapper, that /*opt*/) {
    var other = new Array(this.length);
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this)
        other[i] = mapper.call(that, this[i], i, this);
    return other;
  };
}
if (!('filter' in Array.prototype)) {
  Array.prototype.filter = function (filter, that /*opt*/) {
    var other = [], v;
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this && filter.call(that, v = this[i], i, this))
        other.push(v);
    return other;
  };
}
if (!('every' in Array.prototype)) {
  Array.prototype.every = function (tester, that /*opt*/) {
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this && !tester.call(that, this[i], i, this))
        return false;
    return true;
  };
}
if (!('some' in Array.prototype)) {
  Array.prototype.some = function (tester, that /*opt*/) {
    for (var i = 0, n = this.length; i < n; i++)
      if (i in this && tester.call(that, this[i], i, this))
        return true;
    return false;
  };
}