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24 lines
606 B
24 lines
606 B
10 years ago
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'use strict';
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var setPrototypeOf = require('../object/set-prototype-of')
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, isExtensible = require('./_is-extensible');
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module.exports = (function () {
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var SubArray;
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if (isExtensible) return require('./_sub-array-dummy');
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if (!setPrototypeOf) return null;
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SubArray = function () {
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var arr = Array.apply(this, arguments);
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setPrototypeOf(arr, SubArray.prototype);
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return arr;
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};
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setPrototypeOf(SubArray, Array);
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SubArray.prototype = Object.create(Array.prototype, {
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constructor: { value: SubArray, enumerable: false, writable: true,
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configurable: true }
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});
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return SubArray;
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}());
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