Map

Maps are the “go to” key-value data structure in Elixir.

Maps can be created with the %{} syntax, and key-value pairs can be expressed as key => value:

When keys are atoms the key-value pairs can be expressed as key: value:

• delete/2
• drop/2
• fetch!/2
• fetch/2
• get_and_update!/3
• get_and_update/3
• get_lazy/3
• get/3
• has_key?/2
• keys/1
• merge/2
• merge/3
• new/0
• new/1
• new/2
• pop_lazy/3
• pop!/2
• pop/3
• put_new_lazy/3
• put_new/3
• put/3
• replace!/3
• split/2
• take/2
• to_list/1
• update!/3
• update/4
• values/1