Question

http://jsperf.com/dfgdfg33355

I have table

<table>
  <tr>
    <td>
      <div class="a"></div>
      <div class="data"></div>
    </td>
  </tr>
</table>

 $(".a").parent("td").find(".data").html('1');

vs

$(".a").parent("td").find(".data:first").html('1');

when i press on the div with class .a – go to the first td above , and find the div with class .data and put there a value.

my test was :

search for .data and put value

vs

search for first .data and put value

However it seems that if im not spcifieing first , it is faster.

how can it be ?