JavaScript Tutorials

multi-dimensional named arrays

Multi-dimension arrays are arrays where each element is itself an array.
When referencing a named array element with a literal, make sure to put it in quotes:

Wrong: toothpaste[price] = 1.43;
Right: toothpaste["price"] = 1.43;

Code:

<script type="text/javascript">
//<![CDATA[

var floss = new Array();
floss["item_nbr"] = 12;
floss["price"] = 4.99;
floss["quantity"] = 345;

var toothbrush = new Array();
toothbrush["item_nbr"] = 203;
toothbrush["price"] = 2.77;
toothbrush["quantity"] = 2416;

var toothpaste = new Array();
toothpaste["item_nbr"] = 89;
toothpaste["price"] = 1.43;
toothpaste["quantity"] = 968;

var items = new Array();
items["floss"] = floss;
items["toothbrush"] = toothbrush;
items["toothpaste"] = toothpaste;

for (x in items)
{
  for (y in items[x])
  {
    document.write("items[", x, "][", y, "] : ", items[x][y], "<br>");
  }
  document.write("<br>");
}

//]]>
</script>

Output: