| 'use strict'; | |
| var GetIntrinsic = require('../GetIntrinsic'); | |
| var $Object = GetIntrinsic('%Object%'); | |
| var isPrimitive = require('../helpers/isPrimitive'); | |
| var $preventExtensions = $Object.preventExtensions; | |
| var $isExtensible = $Object.isExtensible; | |
| // https://www.ecma-international.org/ecma-262/6.0/#sec-isextensible-o | |
| module.exports = $preventExtensions | |
| ? function IsExtensible(obj) { | |
| return !isPrimitive(obj) && $isExtensible(obj); | |
| } | |
| : function IsExtensible(obj) { | |
| return !isPrimitive(obj); | |
| }; |