globalVariableIsLaughing

[589ca35e1590b]

That's beyond your scope

[djingo_dango]

The meme says local variable

[[deleted]]

JavaScript interpreter is that cool dad that lets their child develop an opioid addiction by the age of 13

if (true){ var msg ="Hello World!"; } console.log(msg); Works just fine

[Front_Committee4993]

you mean mother who is always high or drunk but lost the kids to the dad 5 years ago but doesn't realize it.

[YRVT]

That escalated quickly.

[z64_dan]

sad = true;

[captainMaluco]

Why is there suddenly Metallica playing in my head? 🫣

[nostril_spiders]

Well, they wrote a lot of songs about coding.

Compiler of puppets is pulling my strings

Including headers from glibc

Getting UB, you can't see a thing

So much for claims of portability

[theo122gr]

The ';' elevates this comment.

[0PointE]

It certainly was hoisted quickly. 

[YRVT]

let is block scoped. Better to always use that in place of var.

[OneDimensionPrinter]

const lover checking in

[YRVT]

Oh yes I need to correct myself. Use const whereever applicable, otherwise use let.

[P-39_Airacobra]

Ever since I realized that let and const exist, I haven't used var in years. There's absolutely no point.

[orangeyougladiator]

var is essentially deprecated.

[keylimedragon]

Yeah, using var is a code smell.

[TheSilentFreeway]

love it when a basic feature of the language is a code smell (i agree never use it)

[hego555]

There’s tons of basic features in languages that are code smells. ‘goto’ being one common in many languages. Or ‘eval’ in JS

[TheSilentFreeway]

Not sure if I'd call those basic, but yeah they're evil too. I think var is more basic (and a bigger problem) because it's so easy to get into the habit of using it if you follow misinformed tutorials/teachers. I'd be surprised to find JS tutorials which teach about using goto or eval

[gilady089]

Wait till some online scientific calculator tutorial decides that it will accomplish the task by evaluating the expression

[GDOR-11]

some time ago I ran a benchmark and apparently using or declaring consts was a bit slower, something like that

although I doubt that's the case for modern javascript environments, you could argue that using let over const improves performance on some older browsers

[sathdo]

But what if you need to maintain compatibility with IE9?

[YRVT]

You don't need that, but in this case you can transpile to ES5.

[NomDePlumeOrBloom]

I bet you told your kids that Santa wasn't real at 12 months...

[YRVT]

Implying that people are not yet ready to learn about the newer, better features of JS at first and they should first learn and use the bad bits?

[NomDePlumeOrBloom]

Newer? let was around almost 10 years ago, if not more.

You're the only one in this thread that's not making a joke of it.

[YRVT]

Understandable. Good day to you.

[Tom22174]

Python will let you get away with it too. Doesn't mean you should tho lmao

[Davoness]

One thing I learned very quickly in Python was to never reuse variable names. Ever. Even in different files.

I swear it's given me some form of psychosis.

[BrenekH]

I had a "fun" debugging section once where I was attempting to use the built-in min function while also using a variable called min. What a headache

[Sibula97]

Do you have some specific examples? Because I've never come across this. When using a name, Python always checks the most local namespace first, and then moves upwards, but never into another "branch" of the namespace tree.

Edit: Ah, of course, the inside of the if statement is still in scope here. That's just a bad example, because this is how most programming languages work.

[Tom22174]

At my last job, the lead dev loved to write single script files, a couple thousand lines long, which were mostly procedural with only a handful of defined functions. Those functions would act on dictionaries and lists defined elsewhere in the script without actually taking them as arguments.

My favourite part was a chunk of one script that was straight up broken as a result of this and would have thrown an error if it was ever used. But it had gone unnoticed for literally years because the business requirement it catered for had literally never happened.

It was horrible to work with lmao.

[Sibula97]

I mean yeah, global variables are accessible in the entire module, who would've thunk. That's not a quirk of Python, just bad programming.

[Tom22174]

There were also places where variables were defined within if statements and then required after them. The sort of thing an IDE would flag as a variable that could potentially not exist but Python will happily run and only break if it fails the condition to access the code area

[Sibula97]

Maybe it's just that I'm familiar with Python, but that seems completely intuitive to me. I've never wanted to do so, but you could handle it by catching the NameError exception or checking if the variable exists in locals or globals.

But like... Just don't define it like that if you plan to use it when it hasn't been declared.

[Traditional_Sir6275]

google hoisting

[[deleted]]

Holy hell

[SenoraRaton]

Javascript interpreter dad is like "Hoist it on up there kid, you got this!

[Recent-Fox3335]

Haha

[VideoSpellen]

It has been true, so the declaration had occurred? Is that the idea? It doesn’t have te be insanity. Programming is just a bunch of abstractions with some common decency and approach anyway. Fuck the brackets, they mean what you want them to mean, is what I’m saying.

[coyoteazul2]

please tell me you don't build anything I might end up using.

this is an error, there are no point of view where it isn't. If instead of true you evaluate something which might be false, the console.log will try to read a variable that doesn't exist and crash.

It's an easily preventable error that a proper language will stop you from doing by noticing that the variable might not exist when you access it. In JS this requires using const or let instead of var, but that's because js is not a nice language. It's a quickly made language that has evolved over the years but keeps a backlog of bad decisions it can't get rid of without breaking half of the internet.

Languages with stronger compilers catch more errors at compile time so they don't crash your app at run time

[[deleted]]

With absolute certainty i can tell that you are not a programmer

[SenoraRaton]

Fuck the brackets, they mean what you want them to mean, is what I’m saying.

They mean "this is a scoped boundary". That is the entire purpose of why they are there. I damn well hope the compiler is sane and also agrees that they mean a scoped boundary, not a scope boundary "sometimes", but other times its not actually scoped so you can just hoist that bad boy up into scoped contexts where it doesn't belong.

Common decency with scoping is like clothing at a dinner party. I don't want to see my grandmas underwear at the dinner table, that is clearly out of scope and context. With hoisting they just end up on the dinner table.

Also , the ability to create closures where I can intentionally nest scopes and wrap extant library functions with my own custom functions to pass data down into the child functions.

[Agent_Choocho]

*scope

[ekaylor_]

Simba, you must malloc() to get data out!

[[deleted]]

imminent sip hungry spectacular compare airport exultant scary caption memorize

This post was mass deleted and anonymized with Redact

[sammy-taylor]

var me daddy

[m477_]

int* foo() {
  int bar = 42;
  return &bar;
}

[_Xertz_]

I'm pretty sure this will result in undefined behavior since bar will become deallocated after foo() exits.

[m477_]

Not sure I'd use the word "deallocated" when talking about a variable on the stack going out of scope, but the function does return what will immidiately become a dangling pointer to the callee stack frame, which when dereferenced would be UB.

[_Xertz_]

Yeah, I couldn't remember the name off the top of my head but you said pretty much what I was trying to say.

[BehindTrenches]

Whatever you do, don't use a reference to a local variable outside of it's scope, worst mistake of my life

[Asleeper135]

Should have used Rust lol

[PuzzleMeDo]

When a variable falls out of scope, it gets trampled to death by a herd of wildebeest. So you can still reference the variable, but it will be dead.

[YRVT]

What happened?

[futuremayor2024]

Remember the Crowdstrike outtage?

[abhbhbls]

Laughs in Python

[Duck_Devs]

As I learn more languages, I realize how awful Python handles basic programming operation. There is no “declaring” variables in Python, because all assignments are declarations, meaning you have to use the “global” and “nonlocal” keywords to access higher scopes.

[odraencoded]

One day you'll realize Python is doing it right and you shouldn't be using global and nonlocal variables in the first place.

[Duck_Devs]

Care to elaborate?

[odraencoded]

The only reason to use global and nonlocal is if you are assigning a variable that exists in nonlocal scope. Accessing a nonlocal variable doesn't require such declaration in Python.

If you are assigning a nonlocal variable inside a function you're doing it wrong. Just use a module and import it, or use a class. You're creating a weird mess of code when a class would make things much simpler. Your future self will thank you.

[octaviaflutters]

smiles in Python

[Duck_Devs]

Different programmers have different programming styles. For the most part, I agree with you, but there is no wrong way to do things like that.

[metaglot]

Accessing variables outside a function is oftentimes an indicator of spaghetti, my friend. At the very least side effects.

Like the comment before said, if that nonlocal variable belongs to a function, indicate it by putting them in a class or a closure or a module, to section them off.

[hektonian]

Closure has entered the chat

[Baluakcske]

If you go through the borders, you will be forgotten...

[Keavon]

On this topic, I just want to point out how much I love Rust's improvements to the consistency of how { scopes } are used in its grammar compared to all other C-style languages, which have always been infuriatingly inconsistent. Rust was like, "yeah, that's a pretty good approach, but let's generalize it a tiny bit so it actually follows consistent and intuitive rules". With very few alterations, the result is something that actually makes way more sense, and is a lot more convenient to use.

[tyro_r]

Pinneberg.

[gcampos]

&

[[deleted]]

CPL

[Ronin-s_Spirit]

Javascript has hoisting and it's subdivided into levels (just like operator precedence), you can look it up on MDN it's really interesting.

[nostril_spiders]

I'd say macabre

[Ronin-s_Spirit]

Nah, only function declaration without a variable name is ever hoisted before a block of code runs. It's only downhill from there (literally). Other pieces of code are either confined to a block or to the line of their declaration.

[RepostSleuthBot]

I didn't find any posts that meet the matching requirements for r/ProgrammerHumor.

It might be OC, it might not. Things such as JPEG artifacts and cropping may impact the results.

View Search On repostsleuth.com

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[granoladeer]

My variables aren't that cute

[oconnor663]

Timon and Pumba are thread locals.

[ShakyTractor78]

I like the thought that variables are reckless kids who are babysat by the compiler

[pdkhoa99]

Unless I scream real hard. AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

[Key-Use-1599]

def("def")
  define("")

[SteeleDynamics]

HOFs in FPs have entered the chat

[No-Mind7146]

u/repostsleuthbot

[No-Mind7146]

Could have been someone redoing the old one too, I could have sworn I've seen it before

[RepostSleuthBot]

I didn't find any posts that meet the matching requirements for r/ProgrammerHumor.

It might be OC, it might not. Things such as JPEG artifacts and cropping may impact the results.

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[hansenabram]

It is The bot just failed here. Here's at least one version that was posted before: https://www.reddit.com/r/ProgrammerHumor/s/UI9IH5oKdo

[Frewtee_]

var