[chriswarbo]

> I mean, as long as you have a flatMap/concatMap function JavaScript arrays are technically a monad too. But that is a practically meaningless thing to say.

It's not "practically meaningless"; it's depth-first-search logic programming (as per How to Replace Failure by a List of Successes https://rkrishnan.org/files/wadler-1985.pdf )

[kqr]

I'm not saying the operations themselves are meaningless. I'm saying that "being a monad" only means something beyond "supporting flatMap" when there's a library of generic monad combinators involved.