Run results for: Dayjs Date-fns format and add day comparison

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Dayjs

187K/s

Date-fns

165K/s

View exact numbers

Test name	Executions per second
✓ Dayjs	186,685 Ops/sec
Date-fns	165,475 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"); window.datefns.add(new Date(), { weeks: 1 });
Dayjs
dayjs(ds) dayjs().format("MM-DD-YYYY"); dayjs().add(1, 'days');