Run results for: data-attribute vs className 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

className

464K/s

data-attribute

441K/s

View exact numbers

Test name	Executions per second
✓ className	463,886 Ops/sec
data-attribute	440,964 Ops/sec

HTML Preparation code:

<div id="foo"></div>

Script Preparation code:

var element = document.createElement('div')
element.className='bax'
element.setAttribute('baz', '1')

Tests: