[w4rh4wk5]

From my experience having used Haskell (a long time ago), the main benefit of Monads is the `do` and <- syntax. Once you got your thing to satisfy the Monad interface, you unlocked the nice syntax for writing code. That, and compatibility with transformers.

Whether this is the best thing since sliced bread or not, is left as an exercise to the reader.

[codebje]

Hah, I like that: the main benefit of monads is turning your functional language back into an imperative one...

IMO it's because option is a monad, list is a monad, io is a monad, async is a monad, try-except is a monad, why invent different magic syntax and semantics for all of them when there's a perfectly good abstraction that covers the lot, and that lets you write functions that are agnostic to which particular monad they're in to boot.

[lmm]

> From my experience having used Haskell (a long time ago), the main benefit of Monads is the `do` and <- syntax. Once you got your thing to satisfy the Monad interface, you unlocked the nice syntax for writing code.

Nah, I don't even use the syntax much any more. The main benefit is the huge library ecosystem that works generically with any monad, so that if you want to e.g. traverse over a datastructure with your effectful action you can just use cataM or whatnot from recursion-schemes instead of writing it yourself, if you want to compose pipelines of them you just use Conduit, etc.