MeasureThat.net

Run results for: 7 properties - style.setProperty vs style.cssText vs style vs Object.assign vs setAttribute

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
10 months ago
Test name Executions per second
style.setProperty 7.9 Ops/sec
style.cssText 16.9 Ops/sec
style replace 15.5 Ops/sec
Object.assign 9.9 Ops/sec
setAttribute 330.4 Ops/sec
style update 8.7 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="test"></div>
Script Preparation code:
 
el = document.getElementById("test");
Tests:

  • style.setProperty

    ​x
     
    let i = 0;
    ​
    while (i < 10000) {
      el.style.setProperty("color","red");
      el.style.setProperty("border","1vmin solid red");
      el.style.setProperty("padding","0.5vmin");
      el.style.setProperty("background-color","black");
      el.style.setProperty("height","1vh");
      el.style.setProperty("width","1vw");
      i++;
    }

  • style.cssText

     
    let i = 0;
    ​
    while (i < 10000) {
      el.style.cssText = "color:red;border:1vmin solid red;padding:0.5vmin;background-color:black;height:1vh;width:1vw;";
      i++;
    }

  • style replace

     
    let i = 0;
    ​
    while (i < 10000) {
      el.style = "color:red;border:1vmin solid red;padding:0.5vmin;background-color:black;height:1vh;width:1vw;";
      i++;
    }

  • Object.assign

     
    let style = {
      height: '1vh',
      width: '1vw',
      color: 'red',
      border: '1vmin solid red',
      backgroundColor: 'black',
      padding: '0.5vmin'
    };
    let i = 0;
    ​
    while (i < 10000) {
      Object.assign(el.style, style);
      i++;
    }

  • setAttribute

     
    let i = 0;
    ​
    while (i < 10000) {
      el.setAttribute('style',"color:red;border:1vmin solid red;padding:0.5vmin;background-color:black;height:1vh;width:1vw;");
      i++;
    }

  • style update

     
    let i = 0;
    ​
    while (i < 10000) {
      el.style.color = "red";
      el.style.border = "1vmin solid red";
      el.style.padding = "0.5vmin";
      el.style.backgroundColor = "black";
      el.style.height = "1vh";
      el.style.width = "1vw";
      i++;
    }