| 'use strict'; |
| |
| var GetIntrinsic = require('get-intrinsic'); |
| |
| var $Object = GetIntrinsic('%Object%'); |
| |
| var isPrimitive = require('../helpers/isPrimitive'); |
| |
| var $preventExtensions = $Object.preventExtensions; |
| var $isExtensible = $Object.isExtensible; |
| |
| // https://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); |
| }; |