Inside 206-105

Existential Pontification and Generalized Abstract Digressions

Unraveling the mystery of the IO monad

When we teach beginners about Haskell, one of the things we handwave away is how the IO monad works. Yes, it’s a monad, and yes, it does IO, but it’s not something you can implement in Haskell itself, giving it a somewhat magical quality. In today’s post, I’d like to unravel the mystery of the […]

  • May 4, 2011