Type Families

Type families in programming are a way to define types that depend on other types, allowing for more flexible and abstract code. Think of them as functions at the type level, which compute new types based on input types. This is useful for creating generic code that adapts to different data structures or behaviors. In Haskell, for example, type families enable customizing how functions work across various types without sacrificing type safety. They help programmers write more reusable, adaptable code by expressing relationships between types clearly and efficiently.