Are there any good examples on how to use Haskell monad functions?

Question

Haskell monad functions are not easy to understand, where can I find usage examples?

Answer 1

You mean the functions with names like fooM and fooM_? You can understand them better possibly by reading their source code, or when you write a do-expression, you could think if that can be expressed with a relevant fooM-function.

You could also take a look at this question.

Answer 2

I wrote a case study called "Anatomy of a New Monad". Is this what you meant?

Answer 3

The answer I was looking for is: [A tour of the Haskell monad functions][1]

But I'm still looking for something similar for the non standard monads.

[1]: http://members.chello.nl/hjgtuyl/tourdemonad.html A tour of the Haskell monad functions

Answer 4

The new O'Reilly book Real World Haskell has some good chapters on monads, which include the kind of wacky ad hoc user-defined abstract monad function stuff you seem to be looking for.