Benchmark: data-attribute vs className 2

HTML Preparation code:

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

Script Preparation code:

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

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
className
data-attribute

Latest run results:

Run details: (Test run date: 5 hours ago)

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/OS: Chrome 131 on Mac OS X 10.15.7

Test name	Executions per second
className	463885.8 Ops/sec
data-attribute	440963.8 Ops/sec

data-attribute vs className 2 (version: 4)