1 var $ = require('../internals/export');
2 var fails = require('../internals/fails');
3 var isObject = require('../internals/is-object');
5 var nativeIsFrozen = Object.isFrozen;
6 var FAILS_ON_PRIMITIVES = fails(function () { nativeIsFrozen(1); });
8 // `Object.isFrozen` method
9 // https://tc39.es/ecma262/#sec-object.isfrozen
10 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
11 isFrozen: function isFrozen(it) {
12 return isObject(it) ? nativeIsFrozen ? nativeIsFrozen(it) : false : true;