Run results for: Css vs javascript add classre

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0

Browser: Firefox 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
java	1051760.0 Ops/sec
css add	2649834.0 Ops/sec
css remove	2873630.0 Ops/sec

HTML Preparation code:

<style>
#myDIV{
transform: translateX(-110%)!important;
color:red;
}
.mystyle {
  transform: translateX(0%)!important;
}
</style>
<div id="myDIV">
I am a DIV element
</div>

Tests:

java
document.getElementById("myDIV").style.transform = "translateX(0%)";
css add
document.getElementById("myDIV").classList.add("mystyle");
css remove
document.getElementById("myDIV").classList.remove("mystyle");

Run results for: Css vs javascript add classre

java

css add

css remove