Migrating away from moment.js

Moment.js was built for the previous era of the JavaScript ecosystem. The modern web looks much different these days. Moment’s usage is so widespread that it’s impossible to deprecate the current version over time. Check out this post on alternative options Migrating away from moment.js

And in alternative corner…

We started with recommendations from the moment deprecation guide and tossed in some fan favorites to make sure we made the best choice we could. Keep in mind that there was a time constraint, so we couldn’t examine every option. Here’s the list we compiled:

• date-fns
• day.js
• spacetime
• luxon

How to choose the correct one ?

It will always go down to project size 😉

• moment – 327KB, but also needs moment-timezone (185KB)
  • Total: 513KB 😮
• date-fns – 37.3 KB, but also needs date-fns-timezone (2KB), and all locales (26 KB)
  • Total: ~64KB
  • Eliminated due to lack of pre-built bundle. We need a single source of truth for IWA, and did not want to have to maintain a build process.
• day.js – 2KB, but also needs the utc and timezone plugins (4KB), and all locales (26 KB)
  • Total: ~32KB
• spacetime – Zero Dependencies comment in the readme.
  • Total: ~43KB
• luxon – 71KB, Everything is included, and it relies on the INTL api for locales.

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