Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; Pixel 3 XL) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Mobile Safari/537.36

Browser: Chrome Mobile 86

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
querySelector	1463452.9 Ops/sec
getElementsByClassName	1968097.8 Ops/sec

HTML Preparation code:

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

Tests: