/// 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 ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-2-6.js * @description Array.prototype.reduce applied to Array-like object, 'length' is an inherited data property */ function testcase() { function callbackfn(prevVal, curVal, idx, obj) { return (obj.length === 2); } var proto = { length: 2 }; var Con = function () { }; Con.prototype = proto; var child = new Con(); child[0] = 12; child[1] = 11; child[2] = 9; return Array.prototype.reduce.call(child, callbackfn, 1) === true; } runTestCase(testcase);