Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36

Browser: Chrome 80

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	709327.6 Ops/sec
getElementsByClassName	787216.9 Ops/sec

HTML Preparation code:

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

Tests: