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/82.0.4056.3 Safari/537.36

Browser: Chrome 82

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	2424560.0 Ops/sec
getElementsByClassName	2986984.0 Ops/sec

HTML Preparation code:

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

Tests: