Background and Notational Conventions
The Haskell programming language is a functional language that makes heavy use of monads, and includes syntactic sugar to make monadic composition more convenient. All of the code samples in this article are written in Haskell unless noted otherwise.
The name monad derives from category theory, a branch of mathematics that describes patterns applicable to many mathematical fields. (As a minor terminological mismatch, the term monad in functional programming contexts is usually used with a meaning corresponding to that of the term strong monad in category theory, a specific kind of category-theoretical monad.)
Read more about this topic: Monad (functional Programming)
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