Learning Functional Programming in Go

Basic monadic functions

The following table consists of some of the more frequently used Monads (for composition, looping, and mapping):

Function	Description
forM	forM acts like an iterator that maps an action over a list and returns the transformed list. forM serves the same purpose as mapM and exists for readability. The rule of thumb is that if there are multiple lines of code in the for loop, then use forM. For example: results <- forM items $ \item -> do -- A big do-block using `item`.forM :: (Monad m, Traversable t) => t a -> (a -> m b) -> m (t b)
forever	forever is a combinator used to repeat an action forever, as follows: forever :: Applicative f => f a -> f b
mapM	The map operation performs mutations when ...