class vs attr

JavaScript performance comparison

Test case created

Preparation code

<div class="selected" selected></div>
<script>
Benchmark.prototype.setup = function() {
    var div = document.querySelector('div');
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
class
div.className = null;
pending…
attr
div.attributes = null;
pending…

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