Run results for: style.display = none vs. classList add hide

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; Infinix X657B Build/QP1A.190711.020; rv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Rocket/2.6.2(20653) Chrome/93.0.4577.82 Mobile Safari/537.36

Browser: Chrome Mobile 93

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
style.display = none	19.6 Ops/sec
classList add hide	51.4 Ops/sec

HTML Preparation code:

<style type="text/css">
        .hide {
            display: none;
        }
</style>
<div id="foo"></div>

Tests:

style.display = none
var element = document.getElementById("foo"); var i = 3000; while (i--) { element.style.display = 'none'; element.style.display = 'block'; }
classList add hide
var element = document.getElementById("foo"); var i = 3000; while (i--) { element.classList.add("hide"); element.classList.remove("hide"); }