Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

Browser: Chrome 65

Operating system: Windows

Device Platform: Other

Date tested: 6 years ago

Test name	Executions per second
querySelector	589819.0 Ops/sec
getElementsByClassName	2391106.0 Ops/sec

HTML Preparation code:

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

Tests: