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15 lines
514 B
JavaScript
15 lines
514 B
JavaScript
var $ = require('../internals/export');
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var fails = require('../internals/fails');
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var isObject = require('../internals/is-object');
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var nativeIsFrozen = Object.isFrozen;
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var FAILS_ON_PRIMITIVES = fails(function () { nativeIsFrozen(1); });
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// `Object.isFrozen` method
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// https://tc39.github.io/ecma262/#sec-object.isfrozen
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$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
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isFrozen: function isFrozen(it) {
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return isObject(it) ? nativeIsFrozen ? nativeIsFrozen(it) : false : true;
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}
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});
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