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You can have monads in clojure (eg: http://funcool.github.io/cats/latest/#monad http://funcool.github.io/cats/latest/#monad) but the problem I see is that they

• goostavos 5y ago
  And without the compiler checking the types, they're nightmarish to use. It falls to pure human sweat to track if a variable holds a `thing` or a `Monad Thing`. In my humble experience, it leads to lots of tedious banging around in the REPL to track down where you made a mistake. This is especially painful while refactoring. I've given up on the monads in dynamic languages outside of really strict confined situations (validation for instance). I think it's ultimately a bit silly to do something like `StateT` in Clojure rather than just using an `atom` or whatever. What you lose in referential transparency and purity, you more than make up for in sanity over the long haul. The scales would tip if Clojure had stronger typing options, but for now, using the idiomatic stuff is the way to go. Although, spec could probably be used in a pinch, but it's kind've hot garbage compared to compiler checked types (imho!).