A simple and intuitive explanation of what Hash Array Mapped Tries are and where they're used.

HAMTs are frequently used in functional programming languages, such as Clojure and Scala in order to implement persistent data structures like maps and sets. HAMTs provide efficient lookup, insertion, and deletion operations while ensuring immutability. They’re also well-suited for concurrent environments where multiple threads or processes access and modify shared data structures simultaneously. Their structural sharing property allows for efficient copying and sharing of data, reducing the need for expensive locking mechanisms.