Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36 OPR/64.0.3417.150

Browser: Opera 64

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	3065083.0 Ops/sec
getElementsByClassName	4236134.0 Ops/sec

HTML Preparation code:

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

Tests: