Run results for: Object.assign vs element.style.*

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object.assign	303730.3 Ops/sec
style.*	255145.8 Ops/sec

HTML Preparation code:

<div id="el">
  <h2>Lorem ipsum dolor sit amet</h2>
</div>

Script Preparation code:

var el = document.getElementById("el");

Tests:

Object.assign
Object.assign(el.style, { top: "3px", height: "10px", left: "50px", transition: "left 0.5s ease", });
style.*
el.style.top= "3px"; el.style.height="10px"; el.style.left= "50px"; el.style.transition= "left 0.5s ease";