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Comment by 3a2d29 | Hacker News Reader

I think you can have null safety in Go and you certainly can have adts.

But even then, what about Ada?

I’m also not an expert, but I assume between C#/Typescript/haskell/swift that you can find all those things in many GC/safer languages.

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Go does not have compile-time null safety or sum types :)

    foo := Foo{"hello"}
    fooPointer := &foo
    fooPointer = nil
    fmt.Println(fooPointer.Bar)
    > panic: runtime error: invalid memory address or nil pointer dereference

In a language like Kotlin a compile time error would prevent `fooPointer.Bar`, and in Rust `nil` does not exist. Go also does not have sum types, see for instance https://making.pusher.com/alternatives-to-sum-types-in-go/

Yes, Ada. Maybe. I will have to look at it.

The rest all are missing basic things. Like, I love TS, but it's absolutely bonkers because js is js. I once worked on a 250k loc project of js/ts, and we had nothing but trouble

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