Run results for: querySelectorAll vs. getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Browser: Firefox 84

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelectorAll	2045606.0 Ops/sec
getElementsByClassName	7823565.0 Ops/sec

HTML Preparation code:

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

Tests: