why this not adding to array

Question

I am trying to create a multidimenssional array like this

var myArray = new Array();
          var test = new Array(1, 100,200,2);
        $.each(test, function(index, val) {

            myArray['value'].push(val);
            myArray['index'].push(index);
        });

but console.log(myArray) shows me no values;

JavaScript doesn't have multidimensional array.

Ram
– Ram

2012-10-13 01:59:27 +00:00
Commented Oct 13, 2012 at 1:59 — Ram
– Ram, Commented Oct 13, 2012 at 1:59

Andrew Whitaker · Accepted Answer · 2012-10-13 02:07:33Z

2

Use an object literal instead of an array:

var myHash= {
    value: [],
    index: []
},
test = [1, 100,200,2];

$.each(test, function(index, val) {
    myHash['value'].push(val);
    myHash['index'].push(index);
});

You shouldn't use arrays as associative arrays. Arrays are accessed by 0-based index and you shouldn't assign arbitrary properties to arrays.

Example: http://jsfiddle.net/andrewwhitaker/F7Zx5/

edited Oct 13, 2012 at 2:07

answered Oct 13, 2012 at 1:59

Andrew Whitaker

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5 Comments

Pablo Mescher Over a year ago

this doesn't create a multidimentional array

Andrew Whitaker Over a year ago

I'm pretty sure the OP is misusing the term "Multidimensional Array"

Asim Zaidi Over a year ago

can I use object instead of an array for this

Asim Zaidi Over a year ago

and if I can then how? since that article makes sense of not using associative arrays in js

Andrew Whitaker Over a year ago

Yes... My answer outlines how to accomplish that.

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