| var $ = require('../internals/export'); |
| var fails = require('../internals/fails'); |
| var isObject = require('../internals/is-object'); |
| |
| var nativeIsExtensible = Object.isExtensible; |
| var FAILS_ON_PRIMITIVES = fails(function () { nativeIsExtensible(1); }); |
| |
| // `Object.isExtensible` method |
| // https://tc39.github.io/ecma262/#sec-object.isextensible |
| $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, { |
| isExtensible: function isExtensible(it) { |
| return isObject(it) ? nativeIsExtensible ? nativeIsExtensible(it) : true : false; |
| } |
| }); |