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twig.fills.js

The following methods are from MDN and are available under a MIT License or are Public Domain.

See:

twig.fills.js

This file contains fills for backwards compatability.

(function() {
    "use strict";

Handle methods that don't yet exist in every browser

    if (!String.prototype.trim) {
        String.prototype.trim = function() {
            return this.replace(/^\s+|\s+$/g,''); 
        }
    };

    if (!Array.prototype.indexOf) {
        Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
            if (this === void 0 || this === null) {
                throw new TypeError();
            }
            var t = Object(this);
            var len = t.length >>> 0;
            if (len === 0) {
                return -1;
            }
            var n = 0;
            if (arguments.length > 0) {
                n = Number(arguments[1]);
                if (n !== n) { // shortcut for verifying if it's NaN
                    n = 0;
                } else if (n !== 0 && n !== Infinity && n !== -Infinity) {
                    n = (n > 0 || -1) * Math.floor(Math.abs(n));
                }
            }
            if (n >= len) {
                return -1;
            }
            var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
            for (; k < len; k++) {
                if (k in t && t[k] === searchElement) {
                    return k;
                }
            }
            return -1;
        }
    };

Production steps of ECMA-262, Edition 5, 15.4.4.18 Reference: http://es5.github.com/#x15.4.4.18

    if ( !Array.prototype.forEach ) {
      Array.prototype.forEach = function( callback, thisArg ) {

        var T, 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);
  1. Let lenValue be the result of calling the Get internal method of O with the argument "length".
  2. Let len be ToUint32(lenValue).
        var len = O.length >>> 0; // Hack to convert O.length to a UInt32
  1. If IsCallable(callback) is false, throw a TypeError exception. See: http://es5.github.com/#x9.11
        if ( {}.toString.call(callback) != "[object Function]" ) {
          throw new TypeError( callback + " is not a function" );
        }
  1. If thisArg was supplied, let T be thisArg; else let T be undefined.
        if ( thisArg ) {
          T = thisArg;
        }
  1. Let k be 0
        k = 0;
  1. Repeat, while k < len
        while( k < len ) {

          var kValue;

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. Call the Call internal method of callback with T as the this value and argument list containing kValue, k, and O.

            callback.call( T, kValue, k, O );
          }

d. Increase k by 1.

          k++;
        }
  1. return undefined
      };
    };

    if(!Object.keys) Object.keys = function(o){
        if (o !== Object(o)) {
            throw new TypeError('Object.keys called on non-object');
        }
        var ret = [], p;
        for (p in o) if (Object.prototype.hasOwnProperty.call(o, p)) ret.push(p);
        return ret;
    }

})();