Skip to content
Experience Quality Coding

Section 4: IO Functor and Monad

IO is a container for treating effectful computations as values. It delays side effects until execution, helping to maintain pure functional programming.

  • Functor: Applies a function to the value inside IO (map).
  • Monad: Chains multiple IO actions in sequence (flatMap).

IO is used to safely handle interactions with the outside world (input/output, side effects).