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/// 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 ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-6.js
* @description Array.prototype.reduce visits deleted element in array after the call when same index is also present in prototype
*/
function testcase() {
function callbackfn(prevVal, curVal, idx, obj)
{
delete arr[3];
delete arr[4];
return prevVal + curVal;
}
Array.prototype[4] = 5;
var arr = ['1',2,3,4,5];
var res = arr.reduce(callbackfn);
delete Array.prototype[4];
if(res === "1235" ) //one element acually deleted
return true;
}
runTestCase(testcase);
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