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14 lines
514 B
14 lines
514 B
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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