Benchmark: matchMedia vs clientWidth

HTML Preparation code:

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<style>
  #before:before {
  	content: "a";
 	 display: none;
  }
  @media(min-width: 200px) {
  	#body {
  		background: red;
  	content: "b";
  	}
  }
  @media(min-width: 600px) {
  	#body {
  		background: blue;
  	content: "c";
  	}
  }
  @media(min-width: 1000px) {
  	#body {
  		background: yellow;
  	content: "d";
  	}
  }
</style>
<div id="body">
</div>

Tests:

clientWidth
document.documentElement.clientWidth;
matchMedia
window.matchMedia("(min-width: 400px)").matches;
Get Background Colour from Jquery
$("#body").css('background-color');
before
window.getComputedStyle(document.getElementById('body'), ':before').getPropertyValue('content').replace(/\"/g, '');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
clientWidth
matchMedia
Get Background Colour from Jquery
before

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/116.0

Browser/OS: Firefox 116 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
clientWidth	3288765.0 Ops/sec
matchMedia	597496.8 Ops/sec
Get Background Colour from Jquery	483765.3 Ops/sec
before	135221.7 Ops/sec

matchMedia vs clientWidth (version: 3)

Comparing performance of: clientWidth vs matchMedia vs Get Background Colour from Jquery vs before

Created: 7 years ago by: Registered User

Jump to the latest result

clientWidth

matchMedia

Get Background Colour from Jquery

before

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A