Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.67 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 10.12.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelector	2874362.0 Ops/sec
getElementsByClassName	3453249.0 Ops/sec

HTML Preparation code:

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

Tests: