[lawrjone]

Just curious on this, what about this do you think is a mistake?

You could do this before without generics, you'd just be unsafely casting types (which can panic at runtime) or assigning to a closured variable, which is quite indirect.

[ngalaiko]

sure. but usage of generics in go is heavily discouraged both by best practices and by the api

generics however are more available to an average gopher

i believe that such availability will eventually produce a go version of spring, or a typescript-like type system, or something even worse

[lawrjone]

Yeah, I think this is personal preference at this point.

I find TS to be pretty great, especially in how you can use the type-system to help you build your code. If your goal is not that, then we'll be aiming for different things.

> is heavily discouraged both by best practices and by the api

On this though, I'm unaware of generics being discouraged? Given they haven't even been released yet, and the amount of effort that's been put into building them, I don't think there's any reason to believe they're discouraged.

[ratorx]

Generics were originally not included because the Go designers felt that it was not necessary, and things could work without them.

Even though this opinion has changed, I don’t think it’s been completely reversed, just weakened. So I still think “Idiomatic Go” would be to avoid generics, except in some specific situations. To me, Generics feel like “smart code” in any situation except the most basic and the predominant mindset I’ve come across is that Go code should be dumb and easily understandable (if verbose).

I think the situation with TS is different. I also like TS (but haven’t used it as much), but tend to write different code with it than I would with Go. I don’t think there is any one clear winner and I find it more helpful to write code as expected for the language chosen, rather than trying to apply the ideas I loved from every language to every other one (as a user, obviously language implementors should be open to inspiration). Otherwise I would probably spend a significant amount of time poorly reinventing Rust Results in every language I use, which would temporarily confuse everyone else who read my code and not be as robust.

[jen20]

> or a typescript-like type system

If only. Sadly generics in Go are nowhere near that advanced and have no possibility of providing even the protections that TypeScript can.