.getAttribute vs .dataset

JavaScript performance comparison

Revision 2 of this test case created by Heavensrevenge

Preparation code

<div id="sampleDiv" data-custom="testCase"></div>
<script>
Benchmark.prototype.setup = function() {
    document.getElementById("sampleDiv").customProp = 'testCase';
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
.getAttribute
var element = document.getElementById("sampleDiv");
var customData = element.getAttribute("data-custom");
pending…
.dataset
var element = document.getElementById("sampleDiv");
var customData = element.dataset.custom;
pending…
.customProp
var element = document.getElementById("sampleDiv");
var customData = element.customProp;
pending…

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