Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36
Chrome 97
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
getAttribute 3487.8 Ops/sec
dataset 803.6 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="foo" data-foo="foo_id"></div>
Tests:
  • getAttribute

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

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