Question

Hey guys. I don’t know much JS, but I wanted to do some quick work with jQuery.

But I’ve been staring at this for about an hour and I don’t understand what I missed:

<script type="text/javascript">
    $('#qty_6035').change(function () {
        var substractedQty, stockQty, remQty;
        substractedQty = (int) $('#qty_6035').val(); // missing ; before statement 
        stockQty = (int) $('#orig_qty_6035').val();
        $('#rem_qty_6035').html(stockQty-substractedQty);
    });
</script>

jQuery library is included at the beggining of the document.

Thanks.

Answer 1

Javascript is a dynamic language so in order to convert a string into a number you could use the parseFloat/parseInt functions:

<script type="text/javascript">
    $('#qty_6035').change(function () {
        var substractedQty = parseFloat($('#qty_6035').val());
        var stockQty = parseFloat($('#orig_qty_6035').val());
        $('#rem_qty_6035').html(stockQty - substractedQty);
    });
</script>