Run results for: className + attribute vs attribute + className

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.88 Safari/537.36

Browser: Chrome 100

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
className + attribute	4024005.8 Ops/sec
attribute + className	4010204.2 Ops/sec

HTML Preparation code:

<div class="testClass" data-name="testDataset"></div>

Tests:

className + attribute
var nodeEl = document.querySelector('.testClass[data-name="testDataset"]');
attribute + className
var nodeEl = document.querySelector('[data-name="testDataset"].testClass');