Run results for: Modern dataset vs old .getAttribute() vs jQuery .data() vs jQuery .attr()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:85.0) Gecko/20100101 Firefox/85.0

Browser: Firefox 85

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
dataset	875563.8 Ops/sec
getAttribute	659690.4 Ops/sec
jQuery .data()	10274.0 Ops/sec
jQuery .attr()	3825.0 Ops/sec

HTML Preparation code:

<h3 id="data" data-test="text">kipr202 header</h3>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js" integrity="sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg==" crossorigin="anonymous"></script>

Tests:

dataset
window.onload = function() { document.querySelector("h3#data").dataset.test; }
getAttribute
window.onload = function() { document.querySelector("h3#data").getAttribute("test"); }
jQuery .data()
$(document).ready(function() { $("h3#data").data("test"); });
jQuery .attr()
$(document).ready(function() { $("h3#data").attr("data-test"); });