/// Copyright (c) 2012 Ecma International. All rights reserved. /// Ecma International makes this code available under the terms and conditions set /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the /// "Use Terms"). Any redistribution of this code must retain the above /// copyright and this notice and otherwise comply with the Use Terms. /** * @path ch15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-c-i-5.js * @description Array.prototype.filter - element to be retrieved is own data property that overrides an inherited accessor property on an Array-like object */ function testcase() { function callbackfn(val, idx, obj) { return idx === 0 && val === 11; } var proto = {}; Object.defineProperty(proto, "0", { get: function () { return 5; }, configurable: true }); var Con = function () { }; Con.prototype = proto; var child = new Con(); child.length = 2; Object.defineProperty(child, "0", { value: 11, configurable: true }); child[1] = 12; var newArr = Array.prototype.filter.call(child, callbackfn); return newArr.length === 1 && newArr[0] === 11; } runTestCase(testcase);