Run results for: querySelector vs getElementsByClassName()[0]

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36

Browser: Chrome 80

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
query	2279121.2 Ops/sec
get	1806131.9 Ops/sec

HTML Preparation code:

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

Tests: