Applicative Functor
Noun · Development
Definitions
A type class between Functor and Monad that allows applying a function inside a context to a value inside a context. Enables combining multiple independent effects (e.g., validating multiple fields and collecting all errors, not just the first). Less powerful than Monad (no chaining dependent computations) but more parallelizable.
In plain English: A programming pattern for combining multiple independent computations that might each fail or have special behavior.
Example: "Use Applicative for form validation — validate name, email, and age independently and collect all errors, instead of stopping at the first."