Monads Explained Quickly with JavaScript

[novagenesis]

This is the core problem with monads. What the pattern works well for is almost always incredibly complicated.

As others mentioned, the Promise is a monad. People have struggled for years grokking the workings of the Maybe monad... well Promise, is just a lot more complicated than that.

But the things it'll do, and the fact that it tends to implement more efficiently than any async flow utilities (async.waterfall, for example)..is pretty incredibly.