15 lines
550 B
JavaScript
15 lines
550 B
JavaScript
|
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;
|
||
|
|
}
|
||
|
|
});
|