this post was submitted on 31 May 2025
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Trans Memes

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private String gender; (lemmy.world)
submitted 1 week ago by [email protected] to c/[email protected]
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[–] [email protected] 46 points 1 week ago (3 children)

That should be private string? Gender. Explicit nullables are your friends.

[–] [email protected] 1 points 1 day ago

let gender: Option<string>;

I like rust.

[–] [email protected] 8 points 6 days ago (3 children)

Which language(s) have <type>? now? Is that a new Java thing? JS/TS thing? I've never seen it.

Edit: formatting

[–] [email protected] 10 points 6 days ago (1 children)

Kotlin has it as well

[–] [email protected] 2 points 6 days ago

Syntax is a little different though, the above wouldn't complete

[–] [email protected] 11 points 6 days ago* (last edited 5 days ago) (2 children)

C#. Until semi-recently it was only used for value types (as reference types are supposed to be nullable by default) but these days you can enable explicit nullables, which means that you have to explicitly specify nullability even for reference types.

I like explicit nullables. It's not much more work to type those question marks and it adds a safeguard against null showing up where it shouldn't.

I specifically ~~inspired~~ insisted on it for this picture because the code on the sign uses capitalized names for something that isn't a class, which is a very C# thing to do.

[–] [email protected] 4 points 6 days ago (1 children)

That sounds similar in purpose to Haskell's 'Maybe' or Rust's 'Option' enum, right?

I still think that the null type was a mistake that introduces unnecessary bugs. But I'm glad to see more languages are taking measures against it

[–] [email protected] 2 points 6 days ago

Someone can correct me if im wrong but I think nullable in C# still doesnt force you to do a null check before accessing properties or methods, however I believe it does give a type error when using a nullable type where non-nullable is expected, which is good. So it might not be 1-to-1 but it fulfills a similar purpose for sure.

Coming from a rust background I would have sure appreciated my workplace enabling the nullable feature on our main codebase from the start. I've run out of patience for null errors :(

[–] [email protected] 3 points 6 days ago

Thanks for the info!

[–] [email protected] 2 points 6 days ago

I'm a novice in these matters, but it's definitely a thing in C#.

[–] [email protected] 18 points 1 week ago

yeah don't even force people into identifying their gender as empty string since it's a social construct anyway