Run results for: querySelectorAll(':scope > *') vs childNodes

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

childNodes

4.0M/s

querySelectorAll

1.4M/s

View exact numbers

Test name	Executions per second
✓ childNodes	3,960,282 Ops/sec
querySelectorAll	1,371,233 Ops/sec

HTML Preparation code:

<div id='parent'></div>

Script Preparation code:

let p = document.getElementById('parent');
Array(100).forEach(i=>p.append(`<span></span>`));

Tests:

querySelectorAll
document.getElementById('parent').querySelectorAll(':scope > *').forEach((c,i)=>c.textContent=i);
childNodes
document.getElementById('parent').childNodes.forEach((c,i)=>c.textContent=i);