elixir map
iex> %{"hello" => "world", a: 1, b: 2} %{:a => 1, :b => 2, "hello" => "world"}
Source: hexdocs.pm
elixir map to new map
users_list = [ %{id: 1, name: "Alice", role: "user", age: 20}, %{id: 2, name: "Bob", role: "admin", age: 30}, %{id: 3, name: "John", role: "editor", age: 40} ] users = Enum.map(users_list, fn user_struct -> Map.take(user_struct, [:id, :name]) end) # [ # %{id: 1, name: "Alice"}, # %{id: 2, name: "Bob"}, # %{id: 3, name: "John"} # ]