1 | var $ = require('../internals/export');
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2 | var fails = require('../internals/fails');
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3 | var isObject = require('../internals/is-object');
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4 |
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5 | var nativeIsExtensible = Object.isExtensible;
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6 | var FAILS_ON_PRIMITIVES = fails(function () { nativeIsExtensible(1); });
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7 |
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8 | // `Object.isExtensible` method
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9 | // https://tc39.github.io/ecma262/#sec-object.isextensible
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10 | $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
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11 | isExtensible: function isExtensible(it) {
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12 | return isObject(it) ? nativeIsExtensible ? nativeIsExtensible(it) : true : false;
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13 | }
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14 | });
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