input array sum with jQuery

Example how sum all values of those fields

<input type="hidden" name="hidden[1]" class="sum" value="31">
<input type="hidden" name="hidden[2]" class="sum" value="21">
<input type="hidden" name="hidden[3]" class="sum" value="321">
<input type="hidden" name="hidden[4]" class="sum" value="-31">
<input type="hidden" name="hidden[5]" class="sum" value="31.12">
<input type="hidden" name="hidden[6]" class="sum" value="0">


If you have 'sum' as a class to define all the elements that must be calculated,
below code should work...


 <script>
 var total = 0;
 $('.sum').each(function () {
      total += parseFloat(this.value);
  });
</script>