MapTools

Provides extended utility functions for working with maps, which are not covered in vanilla elixir.

• key_replace: replace one or multiple key names of a map
• get_by_path: retrieve a value from a nested map
• merge_recursive: merge two maps recursively with two different approaches
  • existing keys will be overwritten
  • existing keys will be accumulated
• remove_nil: as the name says, removes all nil value entries from a map

Examples

iex> MapTools.key_replace(%{a: 1, b: 2, c: 3}, %{a: :alpha, b: :beta})
%{alpha: 1, beta: 2, c: 3}

iex> MapTools.merge_recursive(%{a: 1, b: %{c: 2}}, %{a: 3, b: %{d: 4}})
%{a: 3, b: %{c: 2, d: 4}}

iex> MapTools.remove_nil(%{a: 1, b: nil, c: 3})
%{a: 1, c: 3}

Installation

If available in Hex, the package can be installed by adding map_tools to your list of dependencies in mix.exs:

def deps do
  [
    {:map_tools, "~> 1.0.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/map_tools.