Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Linux; Android 4.2.2; PMT5487_3G Build/JDQ39) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.126 Safari/537.36

Browser: Chrome 66

Operating system: Android 4.2.2

Device Platform: PMT5487_3G

Date tested: 6 years ago

Test name	Executions per second
querySelectorAll	28227.6 Ops/sec
getElementsByClassName	249095.4 Ops/sec

HTML Preparation code:

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

Tests: