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[-] FiskFisk33@startrek.website 73 points 2 years ago

better to go that way than this (note the weekly downloads)

[-] Bumblefumble@lemm.ee 56 points 2 years ago* (last edited 2 years ago)

The best part is the dependency on the function is_odd.

[-] jonwyattphillips@lemmy.ml 44 points 2 years ago* (last edited 2 years ago)

Which itself has a dependency of the function is_number.

[-] FreshLight@sh.itjust.works 5 points 2 years ago
[-] Klear@lemmy.world 6 points 2 years ago* (last edited 2 years ago)

Can't even or can't odd? If only there was a way to find out =/

[-] cantstopthesignal@sh.itjust.works 1 points 2 years ago

The efficient use of memory is an efficient use of memory.

[-] Caboose12000@lemmy.world 4 points 2 years ago

dear Lord lmfao

[-] spez@sh.itjust.works 2 points 2 years ago

That is one deep rabbit hole.

[-] hackris@lemmy.ml 27 points 2 years ago

If I was a JS programmer, I'd just write a bash script to download it every week for fun.

[-] TonyTonyChopper@mander.xyz 12 points 2 years ago

300,000 every week... is this really a feature not built into Java Script?

[-] FiskFisk33@startrek.website 32 points 2 years ago* (last edited 2 years ago)

is this really a feature not built into Java Script?

x % 2 == 0

[-] marcos@lemmy.world 28 points 2 years ago
(+x) % 2 == 0

If you forget for a second it's Javascript, the language will turn back and bite you.

[-] Kindness@lemmy.ml 8 points 2 years ago

(+x) % 2 === 0

[-] FiskFisk33@startrek.website 5 points 2 years ago

I am not good friends with js, what did I miss?

[-] mindbleach@sh.itjust.works 14 points 2 years ago

JS is a language where [1,2,11].sort() returns [1,11,2].

And if you use a variable instead of a bare array, half the functions are side-effectful, as determined by coin toss.

And if you try declaring that variable with new Array(3).map() then it will ignore all 3 indices, because undefined is real enough to be enumerated, but not real enough to be iterated, because, and I cannot overstress the importance of this principle in Javascript, go fuck yourself. Go fuck yourself is why.

[-] PoolloverNathan@programming.dev 5 points 2 years ago

Array(3) doesn't create [undefined, undefined, undefined, ]; it creates [/* hole */, /* hole */, /* hole */, ]. The holes don't set any property on the array whatsoever, so they are skipped when iterating. How this makes sense, I can't tell you.

[-] mindbleach@sh.itjust.works 4 points 2 years ago

Yet the array contains exactly three nothings.

It's like a zen koan.

[-] cantstopthesignal@sh.itjust.works 2 points 2 years ago

Time is a flat circle

[-] Kindness@lemmy.ml 5 points 2 years ago

typeof(null) == 'object'

Because some people think planning an entirely new language should take less than 2 weeks. 10 days, in this case.

See wat for more.

[-] cantstopthesignal@sh.itjust.works 2 points 2 years ago

We wrote it wrong on purpose, as a joke.

[-] mindbleach@sh.itjust.works 1 points 2 years ago

The Wimp Lo doctrine is a valid theory for why JS is Like That.

If there's two ways to do something, JS picks all three.

[-] marcos@lemmy.world 7 points 2 years ago

This evaluates to NaN for some reason:

'10' % 0

Since JS doesn't really differentiate strings from numbers, except on the places it does, it makes sense to make sure you are working with numbers.

[-] FiskFisk33@startrek.website 2 points 2 years ago* (last edited 2 years ago)

Oh right that. I guess I was visualizing a scenario where you already checked for it being a number, such as a Number.isInteger(x)

also, that suprises me a lot, you'd think this is one of the places where it treats stuff as numbers

Not a JS dev either but ===.

Not really sure what the (+x) is about

[-] FiskFisk33@startrek.website 1 points 2 years ago

the remainder operator should return a number or a NaN right? do we actually need the triple here?

[-] marcos@lemmy.world 2 points 2 years ago* (last edited 2 years ago)

Not really. But with JS it's better safe than sorry.

The GP's addition is unnecessary, but I fully support anyone that decides to do it.

[-] FiskFisk33@startrek.website 2 points 2 years ago

point taken!

[-] affiliate@lemmy.world 3 points 2 years ago
[-] marcos@lemmy.world 6 points 2 years ago

It makes sure x is a number.

[-] affiliate@lemmy.world 9 points 2 years ago

what a wonderful and beautiful language. i’m so glad i asked

[-] ArtVandelay@lemmy.world 1 points 2 years ago

And so wonderfully similar to the way that symbol is used in other languages as well. Gosh darn it I love JavaScript

[-] Oszilloraptor@feddit.de 8 points 2 years ago

the is_even package does not provide much worth indeed because it simply negates is_odd and thereby all its benefit.

It's dependency is_odd on the other hand provides at least some additional checks (it also checks if the value is a valid integer below the max int value)

And while I would indeed see uses for such methods (especially with the other checks, no simple oneliners) in some cases, especially in testing: This is stuff you write yourself, throw it in a e.g. NumberUtils class and everything is fine. You do never depend on an external library for that. The benefit (not spending a few seconds to write it) does not outweigh any of the drawbacks that come with external libraries.

[-] gigachad@feddit.de 7 points 2 years ago
[-] crusa187@lemmy.ml 54 points 2 years ago

Damn bro I haven’t seen this meme format in over 20 years! Hopefully you don’t spend all that time debugging those proprietary functions ya goof

[-] cantstopthesignal@sh.itjust.works 31 points 2 years ago* (last edited 2 years ago)

I'm just an old fart programming a neopixel as a hobby.

[-] Asidonhopo@lemmy.world 18 points 2 years ago* (last edited 2 years ago)

Make it faster and jankier with precalculated lookup tables!

[-] cantstopthesignal@sh.itjust.works 14 points 2 years ago

Make it even jankier with uncalculated variables.

[-] Hackerman_uwu@lemmy.world 4 points 2 years ago

Vintage meme indeed.

This dude always looked like a college aged Gregory House to me.

[-] OldWoodFrame@lemm.ee 10 points 2 years ago

What a refreshing meme use. Makes me want a beer actually.

[-] electricprism@lemmy.ml 5 points 2 years ago* (last edited 2 years ago)

The Power Of Math People

(those that know known those that do not know do not know, those that know wish they didn't know, those that don't know wish they knew)

this post was submitted on 08 Mar 2024
475 points (98.2% liked)

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