I recently started working with jQuery.
I want to improve performance for following snipet when run for 1000 times.
html schema:
<table id='myTable'>
<TR class="Grid_Item">
<TD></TD>
...
<TD CLASS="IdCell">56</TD>
...
<TD> <INPUT TYPE="HIDDEN" ID="foo" value="MYfOO" /> </TD>
<TD> <INPUT TYPE="HIDDEN" ID="bar" value="MYBar" /> </TD>
...
<TD></TD>
...
</TR>
...
<TR class="Grid_AltItem"></TR>
</table>
<script type="text/javascript">
var id, foo, bar = null;
jQuery(".Grid_Item,.Grid_AltItem").each( function() { //begin for-each TR
id = jQuery(this).find(".IdCell").text();
foo = jQuery(this).find("#foo").val();
bar = jQuery(this).find("#bar").val();
});
</script>
I am parsing a table and build certain type based on vaues from each row.
In above jQuery I use find function to read values.
I feel that find iterate over the set of TDs and may not be efficient.
I want to read TD values using its index numbers like
jQuery(".Grid_Item,.Grid_AltItem").each( function() { //begin for-each TR
var Id = jQuery("td:eq(2)").text();
var foo = jQuery("td:eq(8)").firstchild.attr("value");
var bar = jQuery("td:eq(9)").firstchild.attr("value");
});
but with that I get values of TDs that are 2nd, 8th and 9th from top of
document and not from TR in context.
How can I get the values?
It would be nice to know if there is another angle to improve performance.
Appreciate it much.
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