Nested Maps in Elixir

nested_maps.md

#Get a value from nested maps

The get_in function can be used to retrieve a nested value in nested maps using a list of keys.

nested_map = %{ name: %{ first_name: "blackode"} }     #Example of Nested Map
first_name = get_in(nested_map, [:name, :first_name])  # Retrieving the Key

# Returns nil for missing value 
nil = get_in(nested, [:name, :last_name])              # returns nil when key is not present

Read docs: Kernel.get_in/2