albertllousas/monads-from-scratch

monads-from-scratch

This repository does not pretend to be a production library, instead, it defines the most used monads in haskell from scratch and some examples on how to use them; the idea is to understand this useful algebraic constructs.

Note: Some mathematical concepts are skipped.

Please check the tests to see examples of how to use them.

Monads:

• Maybe: Implementation & Usage
• Either: Implementation & Usage
• IO: Implementation & Usage
• List: Implementation & Usage
• Reader: Implementation & Usage
• Writer: Implementation & Usage
• State: Implementation & Usage

Monad transformers:

• ReaderT: Implementation & Usage
• StateT: Implementation & Usage
• EitherT: Implementation & Usage
• MaybeT: Implementation & Usage
• WriterT: Implementation & Usage

Type classes:

• Functor: Implementation
• Applicative Functor: Implementation
• Monad: Implementation
• Monad Transformer: Implementation

Build

stack build

Run tests

stack test