I'll be very happy to not have to use Date any more. Pop quiz, what's in whatnum?
js
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 from getDate.
Take two:
js
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.
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?
date-fns? It's third in my search results but doesn't ring any bells to me.
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!
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
Dateany 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.
getDayreturns 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.
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?
date-fns? It's third in my search results but doesn't ring any bells to me.
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!