Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36

Browser: Chrome 67

Operating system: Mac OS X 10.13.2

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
querySelector	2740537.0 Ops/sec
getElementsByClassName	3234020.0 Ops/sec

HTML Preparation code:

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

Tests: