setAttribute('class') vs classList.add

JavaScript performance comparison

Revision 3 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var myDiv = document.createElement('div');
};

Benchmark.prototype.teardown = function() {
    myDiv.setAttribute('class', ''); // Reset
};
</script>

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Testing in unknown unknown
Test Ops/sec
setAttribute
myDiv.setAttribute('class', 'myClass');
pending…
classList.add
myDiv.classList.add('myClass');
pending…
className prop
myDiv.className = 'myClass';
pending…

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