Run results for: test12xxxx

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

27K/s

3/s

View exact numbers

Test name	Executions per second
✓ 2	26,672 Ops/sec
1	3 Ops/sec

HTML Preparation code:

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

Tests:

1
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.className += " bar"; }
2
var element = document.getElementById("foo"); var i = 1000; while (i--) { element.className = "bar"; }