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Run results for:
ResizeObserver vs matchMedia
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<iframe src="https://measurethat.net/Embed?id=581077" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
ResizeObserver
6K/s
matchMedia
4K/s
View exact numbers
Test name
Executions per second
✓
ResizeObserver
5,588 Ops/sec
matchMedia
4,474 Ops/sec
HTML Preparation code:
<div> Hello </div>
Tests:
ResizeObserver
let value; const observer = new ResizeObserver(entries => { value = entries[0].contentRect.width; }) observer.observe(document.body) for (let i = 500; i <= 1920; i++) { window.resizeTo(i, 1000) }
matchMedia
let value; const handleMatchChange = (val) => { value = val; } const match1 = window.matchMedia('screen and (min-width: 800px)') match1.addEventListener('change', handleMatchChange); const match2 = window.matchMedia('screen and (min-width: 480px)') match2.addEventListener('change', handleMatchChange); const match3 = window.matchMedia('screen and (min-width: 1200px)') match3.addEventListener('change', handleMatchChange); for (let i = 500; i <= 1920; i++) { window.resizeTo(i, 1000) }