Run results for: date-fns vs moment addDays

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

datefns

859K/s

moment

428K/s

View exact numbers

Test name	Executions per second
✓ datefns	858,570 Ops/sec
moment	427,640 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.4/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.9.0/date_fns.min.js"></script>

Script Preparation code:

window.__date__ = new Date();
window.__expected__ = '2021/09/26';

Tests:

moment
const momentDate = moment(__date__); const isoString = momentDate.toISOString(); const tomorrow = momentDate.add(1, 'days')
datefns
const actual = __date__.toISOString(); const tomorrow = dateFns.addDays(__date__, 1);