ChakraCore/test/Array/newfromargs.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------


Array.prototype[1] = 100;
function f(param)
{
    var a = new Array(1, param, 3);
    return a;
}

WScript.Echo(f(undefined)[1]);
WScript.Echo(f(undefined)[1]);  // undefined in array parameter should still be set (legacy behavior is missing value)