/// 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 ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-8-2.js * @description Array.prototype.lastIndexOf must return correct index(Number) */ function testcase() { var obj = {toString:function (){return 0}}; var one = 1; var _float = -(4/3); var a = new Array(+0,true,0,-0, false,undefined,null,"0",obj, _float,-(4/3),-1.3333333333333,"str",one, 1, false); if (a.lastIndexOf(-(4/3)) === 10 && // a[10]=-(4/3) a.lastIndexOf(0) === 3 && // a[3] = -0, but using === -0 and 0 are equal a.lastIndexOf(-0) ===3 && // a[3] = -0 a.lastIndexOf(1) === 14 ) // a[14] = 1 { return true; } } runTestCase(testcase);