id selector vs next

JavaScript performance comparison

Test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="a">Test</div>
<div id="a_abc">Testing</div>
<script>
Benchmark.prototype.setup = function() {
    var testDiv = document.getElementById('a');
};
</script>

Preparation code output

Test
Testing

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Testing in unknown unknown
Test Ops/sec
id selector (this.id)
$('#' + testDiv.id + '_abc');
pending…
next
$(testDiv).next();
pending…
id selector (.attr())
$('#' + $(testDiv).attr('id') + '_abc');
pending…

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