Keyword lists and maps — Elixir v1.18.3

Now let's talk about associative data structures. Associative data structures are able to associate a key to a certain value. Different languages call these different names like dictionaries, hashes, associative arrays, etc. In Elixir, we have two main associative data structures: keyword lists and maps. Keyword lists Keyword lists are a data-structure used to pass options to functions. Let's see