Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Safari/605.1.15

Browser: Safari 12

Operating system: Mac OS X 10.12.6

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
querySelector	2885649.0 Ops/sec
getElementsByClassName	3581516.0 Ops/sec

HTML Preparation code:

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

Tests: