/// 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 ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-c-ii-19.js * @description Array.prototype.reduce - value of 'accumulator' used for first iteration is the value of least index property which is not undefined when 'initialValue' is not present on an Array */ function testcase() { var called = 0; var result = false; function callbackfn(prevVal, curVal, idx, obj) { called++; if (idx === 1) { result = (prevVal === 11) && curVal === 9; } } [11, 9].reduce(callbackfn); return result && called === 1; } runTestCase(testcase);