Run results for: matchMedia vs clientWidth vs innerWidth

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/121.0.6167.171 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 121

Operating system: iOS 17.2

Device Platform: Mobile

Date tested: 2 years ago

innerWidth

7.0M/s

clientWidth

5.9M/s

matchMedia

2K/s

View exact numbers

Test name	Executions per second
✓ innerWidth	6,951,356 Ops/sec
clientWidth	5,877,900 Ops/sec
matchMedia	1,800 Ops/sec

HTML Preparation code:

Test

Tests:

clientWidth
document.documentElement.clientWidth > 640;
matchMedia
window.matchMedia("(min-width: 640px)").matches;
innerWidth
window.innerWidth > 640