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33 lines
1.3 KiB
JavaScript
33 lines
1.3 KiB
JavaScript
/// Copyright (c) 2012 Ecma International. All rights reserved.
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/// Ecma International makes this code available under the terms and conditions set
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/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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/// "Use Terms"). Any redistribution of this code must retain the above
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/// copyright and this notice and otherwise comply with the Use Terms.
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/**
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* Refer 11.1.4;
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* The production
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* ElementList : Elisionopt AssignmentExpression
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* 5.Call the [[DefineOwnProperty]] internal method of array with arguments ToString(firstIndex), the Property Descriptor { [[Value]]: initValue, [[Writable]]: true
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* , [[Enumerable]]: true, [[Configurable]]: true}, and false.
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*
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* @path ch11/11.1/11.1.4/11.1.4_4-5-1.js
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* @description Initialize array using ElementList (Elisionopt AssignmentExpression) when index property (read-only) exists in Array.prototype (step 5)
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*/
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function testcase() {
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try {
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Object.defineProperty(Array.prototype, "0", {
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value: 100,
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writable: false,
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configurable: true
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});
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var arr = [101];
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return arr.hasOwnProperty("0") && arr[0] === 101;
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} finally {
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delete Array.prototype[0];
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}
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}
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runTestCase(testcase);
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