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Fwiw, c# wasn't even the first dotnet language with it. F# had async computation expressions a few years earlier.

But F# doesn't have async/await. As you write, it has "computation expressions", which are inspired by Haskell's "do-notation", but are more generalised and powerful (than both Haskell's "do-notation" or Scala's "for-comprehension", let alone async/await).

One of the things I liked best about F#.

Idk if you can strictly say that.

Haskell allows more generalized do blocks because of HKTs. I blogged about this a few years ago. https://www.sparxeng.com/blog/software/higher-kinded-fun-in-.... (Granted, I've never had a use for that beyond code golf).

And C# is nice because you can await anywhere in an expression instead of just at a "let!" declaration. This is something I do miss when using F#.

But agreed, F# is usually my language of choice.

I think the Haskell abstraction is what allows monad transformers. Saw some hacks in F# to allow similar, but you lose generic "lift", for instance.

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