Nested monads enable the composition of monads in such a way that the resulting composition is also a monad. This article explores the concept of nesting monads, discussing how certain monads can be stacked to form a new monad. It delves into examples from Haskell and .NET, showcasing scenarios where monad composition is beneficial. The article also highlights the importance of the inner monad in determining whether composition is possible, emphasizing popular monads like Maybe, Either, State, Reader, and Identity. Additionally, it briefly touches upon the role of monad transformers and their applicability in languages like C# and F#. Overall, this piece serves as a guide to understanding and leveraging nested monads in functional programming paradigms.
