/// 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 ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-5-4.js * @description Array.prototype.lastIndexOf when fromIndex is undefined */ function testcase() { var a = new Array(1,2,1); if (a.lastIndexOf(2,undefined) === -1 && a.lastIndexOf(1,undefined) === 0 && a.lastIndexOf(1) === 2) { // undefined resolves to 0, no second argument resolves to len return true; } } runTestCase(testcase);