/// 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 ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-1-15.js * @description Array.prototype.reduce applied to the Arguments object */ function testcase() { function callbackfn(prevVal, curVal, idx, obj) { return ('[object Arguments]' === Object.prototype.toString.call(obj)); } var obj = (function () { return arguments; }("a", "b")); return Array.prototype.reduce.call(obj, callbackfn, 1); } runTestCase(testcase);