Run results for: queryall vs classname

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

classname

193K/s

queryAll

170K/s

View exact numbers

Test name	Executions per second
✓ classname	192,813 Ops/sec
queryAll	170,392 Ops/sec

HTML Preparation code:

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

Tests:

queryAll
let start = performance.now(); let res = document.querySelectorAll('.test'); console.log(start - performance.now());
classname
let start = performance.now(); let res = document.getElementsByClassName('.test'); console.log(start - performance.now());