kattenluik

joined 2 years ago
[–] kattenluik 1 points 2 years ago

Insanely pretty, I thought it was an island.

[–] kattenluik 5 points 2 years ago (1 children)

Yes?... what else would it be

[–] kattenluik 1 points 2 years ago

At least in the Netherlands, there's a bunch of places you can print including your own school for free.

[–] kattenluik 3 points 2 years ago* (last edited 2 years ago)

Not to mention a lot of massive companies also use it at every part of the stack, Rust is good at it all and it is beautifully and perfectly suited for tasks like these.

[–] kattenluik 1 points 2 years ago

Exactly! The other wrapper enum I named (Option) is the same kind of concept but with Some(value) and None.

[–] kattenluik 1 points 2 years ago* (last edited 2 years ago) (2 children)

Here's some examples written on my phone:

match result {
    Ok(bool_name) => whatever,
    Err(error_type) => whatever,
}

if let Ok(bool_name) = result {
    whatever
}

if result.is_ok() {
    whatever
}

let whatever = result.unwrap_or_default();
let whatever = result?;

And there's many other awesome ways to use a Result including turning it into an Option or unwrapping it unsafely. I recommend you just search "Rust book" on your search engine and browse it. Here's the docs to the Result enum.

[–] kattenluik 4 points 2 years ago* (last edited 2 years ago) (11 children)

It's a great and probably the best error system I've seen, instead of just throwing errors and having bulky try catch statements and such there's just a result type.

Say you have a function that returns a boolean in which something could error, the function would return a Result<bool, Error> and that's it. Calling the function you can choose to do anything you want with that possible Error, including ignoring it or logging or anything you could want.

It's extremely simple.

[–] kattenluik 6 points 2 years ago

You don't with Rust either.

[–] kattenluik 12 points 2 years ago (1 children)

That's where the keyword imagine comes in.

[–] kattenluik 3 points 2 years ago (1 children)

I never said it didn't, this just isn't the right place and in this context it does not matter. It's a term we all know the meaning of and that's what's important.

view more: ‹ prev next ›