Run results for: Dayjs Date-fns format comparison

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/125.0.6422.80 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 125

Operating system: iOS 16.7

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Date-fns	111575.3 Ops/sec
Dayjs	184679.8 Ops/sec

HTML Preparation code:

<script src="https://unpkg.com/dayjs@1.8.21/dayjs.min.js"></script>
<script src="https://igor.moomers.org/random/datefns.js"></script>

Script Preparation code:

window.ds = "2020-02-19T00:51:53.623839+00:00";

Tests:

Date-fns
window.datefns.parseISO(window.ds); window.datefns.format(new Date(), "mm-dd-yyyy");
Dayjs
dayjs(ds) dayjs().format("MM-DD-YYYY")