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27 lines
1.0 KiB
JavaScript
27 lines
1.0 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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* @path ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-8-b-i-6.js
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* @description Array.prototype.lastIndexOf - element to be retrieved is own data property that overrides an inherited accessor property on an Array-like object
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*/
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function testcase() {
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try {
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Object.defineProperty(Object.prototype, "0", {
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get: function () {
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return false;
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},
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configurable: true
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});
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return 0 === Array.prototype.lastIndexOf.call({ 0: true, 1: 1, length: 2 }, true);
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} finally {
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delete Object.prototype[0];
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}
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}
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runTestCase(testcase);
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