Run results for: children vs new querySelctorAll

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

querySelectorAll

125K/s

...children

109K/s

View exact numbers

Test name	Executions per second
✓ querySelectorAll	124,524 Ops/sec
...children	109,189 Ops/sec

HTML Preparation code:

<div class="container">
  <ul>
    <li class="item">Item 1</li>
    <li class="item">Item 2</li>
    <li>Item 3</li>
  </ul>
</div>

Tests:

...children
const container = document.querySelector('.container > ul'); const itemList = [...container.children].filter(el => el.matches('li.item')); console.log(container, itemList);
querySelectorAll
const container = document.querySelector('.container > ul'); const itemList = document.querySelector('.container > ul > li.item'); console.log(container, itemList);