Dynamically creating and naming arrays in javascript

Question

I may be looking at this one the wrong way. I think that dynamically naming the object is the difficult part rather than creating it.

Basically I have an array of arrays and I want to get the nested arrays out.

var $jTableTRS = $('tr.child');
var $jTableTRSArr = jQuery.makeArray($jTableTRS);

each slot in $jTableTRSArr has an array object contained. Thing is i will never know how many arrays are in the $jTableTRSArr.

for(var i=0;i<$jTableTRSArr.length;i++)
    {
            //var  tempArray(withuniqueidentifier) = $jTableTRSArr[i]
    }

This means I could reference each nested array by its name like

tempArray1[0].variable
and not $jTableTRSArr[0].variable.

I'm essentially bringing the nested arrays up one level.

Can this be done or is there a better way to do it?

If you say you will not know how many arrays are into $jTableTRSArr how would you know which intex to use in your variable? And what is wrong using $jTableTRSArr.length to know how many arrays are there? — Miquel
– Miquel, Commented Aug 12, 2011 at 15:12
I mean I will never know before the for loop. Basically Its a table with editable columns. Each nested array is a row. I will know how many default elements there are but not any extras they added on. And i don't know what index they will use, I will have to use something like i to name them. — OVERTONE
– OVERTONE, Commented Aug 12, 2011 at 15:18

Alex Heyd · Accepted Answer · 2011-08-12 15:11:23Z

1

To create dynamic variable names, you could do:

for (var i = 0; i < arr.length; i++){
    window['MyNewArray-' + i] = arr[i];
}

Is this what you were looking for?

answered Aug 12, 2011 at 15:11

Alex Heyd

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