Run results for: getComputedStyle vs matchMedia (javi 4)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

getComputedStyle

494K/s

matchMedia

315K/s

View exact numbers

Test name	Executions per second
✓ getComputedStyle	494,222 Ops/sec
matchMedia	315,051 Ops/sec

HTML Preparation code:

<div class="foo"></div>
<style>
.foo {
  transition: none;  
  color: red;
  display: block;
  padding: 20px;
  background-color: blue;
  text-decoration: none;
}
  
.foo:focus {
  text-decoration: underline;
}
</style>

Tests:

getComputedStyle
var el = document.querySelector('.foo'); var result = window.getComputedStyle(el).getPropertyValue('transition');
matchMedia
var el = document.querySelector('foo'); var result = window.matchMedia('(prefers-reduced-motion)').matches;