Run results for: querySelectorAll data attribute vs class name vs combined

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Linux

Device Platform: Desktop

Date tested: 3 days ago

Test name	Executions per second
data attribute	1388589.5 Ops/sec
class name	1606143.8 Ops/sec
class name with data attribute	794954.8 Ops/sec

HTML Preparation code:

<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>
<div class="test" data-attribute="test"></div>

Tests:

data attribute
var test = document.querySelectorAll('[data-attribute="test"]');
class name
var test = document.querySelectorAll('.test');
class name with data attribute
var test = document.querySelectorAll('.test[data-attribute="test"]');

Run results for: querySelectorAll data attribute vs class name vs combined

data attribute

class name

class name with data attribute