Run results for: querySelectorAll vs. getElementsByClassName

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36

Browser: Chrome 84

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelectorAll	592771.1 Ops/sec
getElementsByClassName	2056671.0 Ops/sec

HTML Preparation code:

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

Tests: