Run results for: getAttribute vs dataset

Run details:

User agent: Mozilla/5.0 (Android 10; Mobile; rv:128.0) Gecko/128.0 Firefox/128.0

Browser: Firefox Mobile 128

Operating system: Android

Device Platform: Mobile

Date tested: 9 months ago

Test name	Executions per second
getAttribute	44094.8 Ops/sec
dataset	480.6 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;}