Run results for: getAttribute vs dataset

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/111.0

Browser: Firefox 111

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
getAttribute	226032.0 Ops/sec
dataset	1378.0 Ops/sec

HTML Preparation code:

<div id="foo" data-foo="foo_id"></div>

AخA
 
<div id="foo" data-foo="foo_id"></div>

Tests:

var element = document.getElementById("foo");
var i = 10000;
while (i--) {
	var foo = element.getAttribute("data-foo");
}

 
var element = document.getElementById("foo");var i = 10000;while (i--) {    var foo = element.getAttribute("data-foo");}

var element = document.getElementById("foo");
var i = 10000;
while (i--) {
  	var foo = element.dataset.foo;
}

 
var element = document.getElementById("foo");var i = 10000;while (i--) {    var foo = element.dataset.foo;}