/// 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 ch15/15.4/15.4.4/15.4.4.18/15.4.4.18-2-3.js * @description Array.prototype.forEach - 'length' is an own data property that overrides an inherited data property on an Array-like object */ function testcase() { var result = false; function callbackfn(val, idx, obj) { result = (obj.length === 2); } var proto = { length: 3 }; var Con = function () { }; Con.prototype = proto; var child = new Con(); child.length = 2; child[0] = 12; child[1] = 11; child[2] = 9; Array.prototype.forEach.call(child, callbackfn); return result; } runTestCase(testcase);