Run results for: Set style vs setAtrribute("style") 6

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:65.0) Gecko/20100101 Firefox/65.0

Browser: Firefox 65

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Style by property Fixed Values	306086.9 Ops/sec
Style by name Fixed Values	300384.0 Ops/sec
setAttribute Fixed Values	4202109.0 Ops/sec
setProperty Fixed Values	317651.8 Ops/sec
Style by property Single Random Value	382334.0 Ops/sec
Style by name Single Random Value	368277.0 Ops/sec
setAttribute Single Random Value	280518.4 Ops/sec
setProperty Single Random Value	392269.2 Ops/sec
Style by property All Random Values	238350.6 Ops/sec
Style by name All Random Values	272357.0 Ops/sec
setAttributey All Random Values	236938.0 Ops/sec
setProperty All Random Values	258566.0 Ops/sec

HTML Preparation code:

<div id="element" style="background:#555;color:#FFF;position:absolute;left:0;top:0;width:400px;height:100px;">
</div>

Script Preparation code:

  var elem = document.getElementById('element');
function getRandomInt(max) {
  return Math.floor(Math.random() * Math.floor(max));
}

Tests:

Style by property Fixed Values
elem.style.width = '500px'; elem.style.height = '50px'; elem.style.top = '40px'; elem.style.left = '90px';
Style by name Fixed Values
elem.style['width'] = '500px'; elem.style['height'] = '50px'; elem.style['top'] = '40px'; elem.style['left'] = '90px';
setAttribute Fixed Values
elem.setAttribute('style','width:500px;height:50px;top:40px;left:90px;');
setProperty Fixed Values
elem.style.setProperty('width', '500px'); elem.style.setProperty('height', '50px'); elem.style.setProperty('top', '40px'); elem.style.setProperty('left', '90px');
Style by property Single Random Value
elem.style.width = getRandomInt(500) + 'px'; elem.style.height = '50px'; elem.style.top = '40px'; elem.style.left = '90px';
Style by name Single Random Value
elem.style['width'] = getRandomInt(500) + 'px'; elem.style['height'] = '50px'; elem.style['top'] = '40px'; elem.style['left'] = '90px';
setAttribute Single Random Value
elem.setAttribute('style','width:' + getRandomInt(500) + 'px;height:50px;top:40px;left:90px;');
setProperty Single Random Value
elem.style.setProperty('width', getRandomInt(500) + 'px'); elem.style.setProperty('height', '50px'); elem.style.setProperty('top', '40px'); elem.style.setProperty('left', '90px');
Style by property All Random Values
elem.style.width = getRandomInt(500) + 'px'; elem.style.height = getRandomInt(50) + 'px'; elem.style.top = getRandomInt(40) + 'px'; elem.style.left = getRandomInt(90) + 'px';
Style by name All Random Values
elem.style['width'] = getRandomInt(500) + 'px'; elem.style['height'] = getRandomInt(50) + 'px'; elem.style['top'] = getRandomInt(40) + 'px'; elem.style['left'] = getRandomInt(90) + 'px';
setAttributey All Random Values
elem.setAttribute('style','width:' + getRandomInt(500) + 'px;height:' + getRandomInt(50) + 'px;top:' + getRandomInt(40) + 'px;left:' + getRandomInt(90) + 'px;');
setProperty All Random Values
elem.style.setProperty('width', getRandomInt(500) + 'px'); elem.style.setProperty('height', getRandomInt(50) + 'px'); elem.style.setProperty('top', getRandomInt(40) + 'px'); elem.style.setProperty('left', getRandomInt(90) + 'px');

Run results for: Set style vs setAtrribute("style") 6

Style by property Fixed Values

Style by name Fixed Values

setAttribute Fixed Values

setProperty Fixed Values

Style by property Single Random Value

Style by name Single Random Value

setAttribute Single Random Value

setProperty Single Random Value

Style by property All Random Values

Style by name All Random Values

setAttributey All Random Values

setProperty All Random Values