JSTests/ChakraCore/test/Array/array_init.js

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

function DumpArray(a)
{
    var undef_start = -1;
    for (var i = 0; i < a.length; i++)
    {
        if (a[i] == undefined)
        {
            if (undef_start == -1)
            {
                undef_start = i;
            }
        }
        else
        {
            if (undef_start != -1)
            {
                WScript.Echo(undef_start + "-" + (i-1) + " = undefined");
                undef_start = -1;
            }
            WScript.Echo(i + " = " + a[i]);
        }
    }
}
DumpArray([]);
DumpArray([ 0 ]);
DumpArray([ 0, 1, 2, 3, 4, 5, 6 ,7 ,8, 9]);
DumpArray([,,,0,,,1,,,2,,,3,,,4,,,5,,,6,,,7,,,8,,,9,,,]);

var s0 = "";
for (var i = 0; i < 100; i++)
{
    s0 += ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,";
}
DumpArray(eval("[" + s0 + "1]"));
var s1 = "";
for (var i = 0; i < 30; i++)
{
    s1 += s0;
}
DumpArray(eval("[" + s1 + "1]"));
var s2 = "";
for (var i = 0; i < 10; i++)
{
    s2 += s1;
}
DumpArray(eval("[" + s2 + "1]"));