dom id vs assign

JavaScript performance comparison

Test case created

Preparation code

<div id="whut">dunno</div>
<script>
Benchmark.prototype.setup = function() {
    var cacheArray = {};
    cacheArray['whut'] = document.getElementById('whut');
   
   
};
</script>

Preparation code output

dunno

Test runner

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Testing in unknown unknown
Test Ops/sec
get by id
var theItem = document.getElementById('whut');
pending…
get by cache
var theItem = cacheArray['whut'];
pending…

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