Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36

Browser: Chrome 86

Operating system: Mac OS X 10.15.3

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelector	2215321.0 Ops/sec
getElementsByClassName	2803588.0 Ops/sec

HTML Preparation code:

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

Tests: