Thank god. I’ve been regularly checking the Github page waiting for it to finally land in browsers. Can hopefully start using the pollyfill for it soon.
I’ll be very happy to not have to use
Date
any more. Pop quiz, what’s inwhatnum
?const vday = new Date('14 February 2025'); const whatnum = vday.getDay() - vday.getMonth();
Err, it’s 5… Ha, amazing; that’s not even the gotcha I meant to demonstrate.
getDay
returns the day of the week, the day of the month is returned fromgetDate
.Take two:
const vday = new Date('14 February 2025'); const whatnum = vday.getDate() - vday.getMonth();
So this is 14 - 2 = 12, right? Nope! The day (from getDate) is 1-based whereas month is 0-based, so 14 - 1 = 13.
I’m quite lucky because I only had to solve an issue with JavaScript dates once, but what a nightmare it was… I had to understand how timezones worked, that was not fun!
Man, I can’t remember the last time I used Date. I either use moment or… the other big one. I think it’s just a three letter name?
Day.js possibly. It’s a near drop-in for moment since moment is deprecated.
Yeah, that one! It’s a pretty nice library. The difference between it and moment is that date-fns operates on standard Date objects, rather than having its own type