mirror of https://github.com/tc39/test262.git
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: >
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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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es5id: 11.1.4_4-5-1
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description: >
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Initialize array using ElementList (Elisionopt
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AssignmentExpression) when index property (read-only) exists in
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Array.prototype (step 5)
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includes: [runTestCase.js]
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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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