Run results for: querySelector vs getElementsByClassName vs attributes

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.54 Safari/537.36

Browser: Chrome 94

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
querySelector	4016230.0 Ops/sec
getElementsByClassName	4973939.0 Ops/sec
querySelectorAll	1803766.0 Ops/sec
querySelector (attribute)	2139794.0 Ops/sec
querySelectorAll (attribute)	1041918.0 Ops/sec

HTML Preparation code:

<div class="test"></div>

Tests: