/// 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 ch15/15.4/15.4.4/15.4.4.20/15.4.4.20-2-10.js * @description Array.prototype.filter applied to Array-like object, 'length' is inherited accessor property */ function testcase() { function callbackfn(val, idx, obj) { return obj.length === 2; } var proto = {}; Object.defineProperty(proto, "length", { get: function () { return 2; }, configurable: true }); var Con = function () { }; Con.prototype = proto; var child = new Con(); child[0] = 12; child[1] = 11; child[2] = 9; var newArr = Array.prototype.filter.call(child, callbackfn); return newArr.length === 2; } runTestCase(testcase);