Run results for: querySelector vs getElementsByClassName get first element

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.113 Safari/537.36

Browser: Chrome 81

Operating system: Windows 7

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	2533651.8 Ops/sec
getElementsByClassName	1936092.2 Ops/sec

HTML Preparation code:

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

Tests: