Question

I am having trouble with performance in IE and I am doing a large loop that has this selector:

td:not(.some-cell)

Is there a more efficient way to do this in IE?

Answer 1

IE8 does not support :not selector natively, so if you are using pure-script selectors engine like Sizzle built-in to jQuery, it may be performance issue due to slow pure-script search through all elements.

Most simple solution is to mark each that TD element with a specific class on server side, and then select them just with class selector.

<td class="not-some-cell"></td>

<script>
    // instead of $('TD:not(.some-cell)')
    var myCell = $('TD.not-some-cell');
</script>