Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0

Browser: Firefox 73

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	2456400.0 Ops/sec
getElementsByClassName	4391598.0 Ops/sec

HTML Preparation code:

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

Tests: