First child selection

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="a">
<div /><div /><div /><div /><div />
</div>
<script>
Benchmark.prototype.setup = function() {
    d = $('#a')
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
children(":first")[0]
d.children(":first")
pending…
children()[0]
$(d.children()[0])
pending…
find(":nth-child(1)") [0]
d.find(":nth-child(1)") 
pending…
.find(":first")
d.find(":first")
pending…
.childNodes (native)
d[0].childNodes[1]
pending…

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