getting width of first element in set

JavaScript performance comparison

Revision 2 of this test case created

Info

jQuery's width() method returns the first element in the set.

I have a set of elements and need to know the width of the first. should i filter the set to .eq(0) or leave jQuery to do that.

Preparation code

<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
 
<style>
div{
width:300px;
height:200px;
}
</style>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<script>
  var div = $("div");
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
filtering the first
console.log(div.eq(0).width());
pending…
without filtering the first in set
console.log(div.width());
pending…

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