Created
May 17, 2015 23:31
-
-
Save jfromaniello/0d02dc4b9138717621e8 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys | |
| if (!Object.keys) { | |
| Object.keys = (function() { | |
| 'use strict'; | |
| var hasOwnProperty = Object.prototype.hasOwnProperty, | |
| hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString'), | |
| dontEnums = [ | |
| 'toString', | |
| 'toLocaleString', | |
| 'valueOf', | |
| 'hasOwnProperty', | |
| 'isPrototypeOf', | |
| 'propertyIsEnumerable', | |
| 'constructor' | |
| ], | |
| dontEnumsLength = dontEnums.length; | |
| return function(obj) { | |
| if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) { | |
| throw new TypeError('Object.keys called on non-object'); | |
| } | |
| var result = [], prop, i; | |
| for (prop in obj) { | |
| if (hasOwnProperty.call(obj, prop)) { | |
| result.push(prop); | |
| } | |
| } | |
| if (hasDontEnumBug) { | |
| for (i = 0; i < dontEnumsLength; i++) { | |
| if (hasOwnProperty.call(obj, dontEnums[i])) { | |
| result.push(dontEnums[i]); | |
| } | |
| } | |
| } | |
| return result; | |
| }; | |
| }()); | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment