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