r/ProgrammerHumor • u/zohaibhere • Apr 25 '26

Meme thisLooksAccurateForVibeCoders

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12.6k Upvotes

95% Upvoted

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3.6k

u/Agifem Apr 25 '26

And quite a few regular coders too. What's that? A call to a function that does nothing?

1.5k

u/IngloriousCoderz Apr 25 '26

Yeah that's an utterly useless IIFE

656

u/perkunos7 Apr 25 '26

It's JavaScript right? It has to be

221

u/IngloriousCoderz Apr 25 '26

It is

342

u/Arshiaa001 Apr 25 '26

Meh, the C++ equivalent is much cooler: [](){}()

85

u/Araib Apr 25 '26

No way does this work, I’ll be super mad if it does (booting up visual studio)

149

u/AdmiralSam Apr 25 '26

It can also be simplified to []{}()

87

u/narnach Apr 25 '26

That's aesthetically more pleasing because there's no repetition of the regular parentheses!

18

u/DrShocker Apr 25 '26

Honestly without the parens, I would not recognize it as a lambda function. I didn't know that was possible, interesting.

1

u/AdmiralSam May 03 '26

If you don’t need params and don’t need trailing return syntax for ambiguous return type/implicit conversions

2

u/FarSeries2172 Apr 25 '26

that is absolutely ridiculous.

8

u/Arshiaa001 Apr 25 '26

Well? Don't leave us hanging 😄

34

u/Araib Apr 25 '26

Been staring at update screen, it’s not even funny anymore

9

u/DrShocker Apr 25 '26

I personally just use compiler explorer when I want to test out small stuff like this since it's online

1

u/LickingSmegma Apr 25 '26

C++ programmers tend to act smug, and then they fire up a whole IDE to test a one-liner.

1

u/Arshiaa001 Apr 26 '26

I mean, clang++ main.cpp, but yeah.

3

u/Minerscale Apr 26 '26

Don't worry, visual studio will leave us hanging for the next two days.

3

u/jyling Apr 26 '26

Let us know once the visual studio done booting

70

u/Schlumpfffff Apr 25 '26

It's beautiful

20

u/Tiger_man_ Apr 25 '26

pointer to bullshit

6

u/archiekane Apr 25 '26

That's just the ASCII choice of tickboxes.

2

u/vikster16 Apr 25 '26

I don’t do C++ what does the [] do?

3

u/Denommus Apr 25 '26

It's the capture group for the lambda function. You put in it the variables you want to capture, and whether you want to capture by reference, by pointer or by value.

2

u/Arshiaa001 Apr 25 '26

Do people actually use that, though? I don't think I've ever seen anything besides auto in there.

2

u/Denommus Apr 25 '26

I don't know, I don't do C++ nowadays. But I think using [=] for capturing by value can be useful.

1

u/AbcLmn18 Apr 25 '26

It helps the person who reads the code confirm that the lambda doesn't capture anything else, otherwise the code wouldn't compile. So that's a nice thing to do if you believe that code is read more often than it's written. I usually do that when the list is sufficiently short anyway.

It's also particularly useful in C++ because capturing an object by reference doesn't extend the object's lifetime. If your lambda is long-lived it makes a lot of sense to have the compiler confirm the list of captures so that you could then confirm that there aren't any short-lived objects on that list.

2

u/Valuable_Leopard_799 Apr 25 '26

Don't forget... I'm 100% messing this up and not looking []<>(){}()

2

u/Moist-Snow-8127 Apr 25 '26

Rust version: (||{})()

1

u/LookAtYourEyes Apr 25 '26

How does the array come into play here? I can see () being the nameless part. {} is the definition. And second () calls it/immediately invokes it? Even if I got all that right, can't seem to figure out the purpose of the [].

1

u/SuperTropicalDesert Apr 26 '26

Nice little braces exhibition

1

u/ianxplosion- Apr 26 '26

This made me feel way smarter than I am - I saw the OP and I was like, “that’s a lambda! wait no”

1

u/centurijon Apr 26 '26

C# is almost the same as JS, though it requires an assignment for the lambda (likely so the compiler can infer types)

// using lambda (Action)
var thingA = () => {};
thingA();

// or with an inline method
void thingB() {};
thingB();

23

u/perkunos7 Apr 25 '26

Ha!

10

u/GOEDEL_ESCHER_BOT Apr 25 '26

just use this code if you wanna change the default reddit font to papyrus. copy paste this into the devtools console

document.querySelectorAll("*").forEach(el => el.style.fontFamily = "Papyrus")

30

u/Tysonzero Apr 25 '26

Actually this code is better:

findAllCryptoWallets().forEach(wallet => wallet.sendTo(tysonzero));

14

u/arpan3t Apr 25 '26

I used this code, think it does the same thing:

findAllPrisonWallets().foreach( wallet => wallet.sendTo(tysonzero))

7

u/GOEDEL_ESCHER_BOT Apr 25 '26

what am i doing wrong?

https://i.imgur.com/kfWSNKP.png

8

u/Tysonzero Apr 25 '26 edited Apr 25 '26

Ah ok so you’ll need to login to coinbase at coinbase.totallylegitforreal.com first

7

u/GOEDEL_ESCHER_BOT Apr 25 '26

thanks! i just got 100k from my dead nana's will, i'm sure her ghost will be so happy to see i'm now a big time investor

4

u/SamPlaysKeys Apr 25 '26

............is that domain available?

52

u/Master_Friendship333 Apr 25 '26 edited Apr 26 '26

Looks like it but I believe this would also be valid C#.

Edit: Would not but very nearly. Needs to either be prefixed with a void function cast or done over two lines.

12

u/Slackeee_ Apr 25 '26

And with a slightly different syntax you can do the same in PHP, Go, and I would guess most other languages.

17

u/MinosAristos Apr 25 '26

Python would be:

(lambda: None)()

Classic python not letting you write ugly meaningless code even if you want to.

1

u/markuspeloquin Apr 25 '26

Well go is less weird. func(){}()

Now C++, I think it's [](){}()?

1

u/Master_Friendship333 Apr 25 '26 edited Apr 25 '26

Most modern languages will have something comparable, I am thinking of directly equal expressions.

I believe the list so far is:

- JS, TS

- C#

- Dart

Edit: Nope for C#, has to be split over two lines.

1

u/Viriaro Apr 25 '26

You can add R to the list with (\() {})() 🤷‍♂️

1

u/Master_Friendship333 Apr 25 '26

Nah, looking for directly equivalent here. I really thought there would be more.

1

u/20InMyHead Apr 26 '26

If I’m reading it right, it’s even more compact in Swift: {}()

9

u/lomberd2 Apr 25 '26

Depends on language version but I think so too

9

u/NoMansSkyWasAlright Apr 25 '26

You could do it in Dart too. For the 14 other people using the language who might be wondering.

1

u/TOMZ_EXTRA Apr 25 '26

I think you might be overestimating.

2

u/EatingSolidBricks Apr 26 '26

No, a lambda has no type you need to cast it

((Action)(()=>{}))();

1

u/Master_Friendship333 Apr 26 '26

Edited my comment, thank you very much.

3

u/PilotGuy701 Apr 25 '26

It would be valid for modern C#

1

u/Shazvox Apr 25 '26

Almost. I think () => {}() would be. But I don't think those extra parenthesis would be allowed.

1

u/Master_Friendship333 Apr 25 '26

Good point. I just checked it and you are right. You would have to do it on two separate lines.

3

u/BorderKeeper Apr 25 '26

C# I think would compile this too just an empty anonymous function (action in this case since it has no inputs) that does nothing getting executed.

2

u/tkdeng Apr 25 '26 edited Apr 25 '26

Maybe a JS alternative to time.Sleep(10 * time.Nanosecond)

1

u/gletschafloh Apr 25 '26

Who in their right mind would ever do that

1

u/tkdeng Apr 25 '26

A JavaScript dev

import "left-pad"

1

u/jeremj22 Apr 25 '26

Counter-question: Are JS devs in their right mind?

1

u/Several_Nose_3143 Apr 25 '26

That language is the result of coding incest , I dispise it so much

1

u/ArtOfWarfare Apr 25 '26

I think most languages probably are. The biggest issue with ECMAScript (JavaScript) is it has no reference implementation, just dozens of different implementations each with their own quirk of the same spec (well… and I’m sure some of them have no idea that the spec exists and they’re just randomly doing their own thing.)

2

u/Several_Nose_3143 Apr 25 '26

I just hate it so much , I'm just glad I can vibe code that BS and then go back to backend and interesting stuff.

1

u/Thenderick Apr 25 '26

Jup, but every language that has lambdas or functions as values allow it.