this post was submitted on 31 Oct 2024
387 points (98.5% liked)

196

16542 readers
2292 users here now

Be sure to follow the rule before you head out.

Rule: You must post before you leave.

^other^ ^rules^

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] FiskFisk33@startrek.website 14 points 3 weeks ago (13 children)

oh of course there is

https://www.npmjs.com/package/is-even

(do take a look at the download stats)

[–] Micromot@feddit.org 7 points 3 weeks ago* (last edited 3 weeks ago) (9 children)

Can't you just

If (number % 2 == 0){return true}

[–] drake@lemmy.sdf.org 6 points 3 weeks ago (3 children)

but what if number isn’t an integer, or even a number at all? This code, and the improved code shared by the other user, could cause major problems under those conditions. Really, what you would want, is to validate that number is actually an integer before performing the modulo, and if it isn’t, you want to throw an exception, because something has gone wrong.

That’s exactly what that NPM module does. And this is why it’s not a bad thing to use packages/modules for even very simple tasks, because they help to prevent us from making silly mistakes.

[–] Micromot@feddit.org 1 points 3 weeks ago (1 children)

That would already cause an exception when calling the function because it has int number in the parameters

[–] drake@lemmy.sdf.org 4 points 3 weeks ago

Javascript doesn’t have strongly-typed variables

load more comments (1 replies)
load more comments (6 replies)
load more comments (9 replies)