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I'm almost sure that Haskell has had its "do notation" even before 2007.

And maybe even Scala its "for comprehension".

Yeah - I was limiting my post to explicit async/await.

Don Syme, creator of F#, had a nice thread on the roots of async/await, though it doesn't mention do-notation: https://mobile.twitter.com/dsymetweets/status/14074008179179...

I'm still annoyed that most other languages stole async/await... but not the more general monadic/do notation. Instead we get elvis operators, chaining functions, etc.

F#'s "Computation expressions" are the same sort of thing as the mentioned Haskell's "do notation" and Scala's "for comprehension". They're just thin syntactic sugar for "callbacks" -- chaining maps/binds/flatmaps/etc. Even though F#'s "Computation expressions" are very cleverly thought out and more general.

https://docs.microsoft.com/en-us/dotnet/fsharp/language-refe...

Async/await for example in C# or Rust is different. This translates the program into transition automata/coroutines.

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