Fun Loops ▶️

315 readers

249 users here now

Posting interesting/cool/funny videos from Loops here

Thanks to @Bluefruit @lemmy.world for the icon and banner!

Discussion of and questions about Loops should go over in !loops@lemmy.world

If the loop you're posting isn't original content uploaded by the creator, prefix the title with [R] for "reposted". For example, [R] Cute dog.

Rules:

Don't be a dick
Don't make me add more rules

founded 1 month ago

MODERATORS

m_f@midwest.social

[R] Stupidest ways people have solved coding interviews (loops.video)

submitted 6 days ago by m_f@midwest.social to c/loops@midwest.social

35 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] ImplyingImplications@lemmy.ca 8 points 6 days ago (2 children)

That would be isPositive.

Without using the modulo operator you'd essentially have to reimplement it. Divide the number by 2 and round down. Multiply that by 2 and then subtract it from the original number.

isEven(10) results in 10-10==0 (true) whereas isEven(13) results in 13-12==0 (false).

function isEven(n){
  n = Math.abs(n)
  return (n - (Math.floor(n/2) * 2)) == 0
}

[–] Kraiden@kbin.earth 5 points 6 days ago

Yep! I'm wrong. Pretty embarrassing!

That's a nice solution though! Gonna have to try and remember that one!

[–] dream_weasel@sh.itjust.works 4 points 6 days ago* (last edited 6 days ago)

Minor simplification: this works even without taking absolute value first of you use fix instead of floor.

Edit: I don't know if fix is in the stock math library on second thought...