Useful (useful v0.3.0)
A Library of Useful
functions for building Elixir
Apps.
Link to this section Summary
Functions
atomize_map_keys/1
converts a Map
with different keys
to a map with just atom keys. Works recursively for nested maps.
Inspired by stackoverflow.com/questions/31990134
flatten_map/1
flattens a Map
of any depth/nesting for easier processing.
Deeply nested maps are denoted by "" (double underscore) e.g:
%{name: Alex, detail: %{age: 17}}
becomes `%{name: Alex, detailage: 17}`
this makes it easy to see what the data structure was before flattening.
Map keys are converted to Atom for simpler access and consistency.
Inspired by: https://stackoverflow.com/questions/39401947/flatten-nested-map
stringy_map/1
converts a Map
of any depth/nesting into a string.
Deeply nested maps are denoted by "__" (double underscore). See flatten_map/1
for more details.
Link to this section Functions
atomize_map_keys(map)
atomize_map_keys/1
converts a Map
with different keys
to a map with just atom keys. Works recursively for nested maps.
Inspired by stackoverflow.com/questions/31990134
Examples
iex> Useful.atomize_map_keys(%{"name" => "alex", id: 1})
%{id: 1, name: "alex"}
iex> Useful.atomize_map_keys(%{"name" => "alex", data: %{ "age" => 17}})
%{name: "alex", data: %{age: 17}}
flatten_map(map)
flatten_map/1
flattens a Map
of any depth/nesting for easier processing.
Deeply nested maps are denoted by "" (double underscore) e.g:
%{name: Alex, detail: %{age: 17}}
becomes `%{name: Alex, detailage: 17}`
this makes it easy to see what the data structure was before flattening.
Map keys are converted to Atom for simpler access and consistency.
Inspired by: https://stackoverflow.com/questions/39401947/flatten-nested-map
Examples
iex> map = %{name: "alex", data: %{age: 17, height: 185}}
iex> Useful.flatten_map(map)
%{data__age: 17, data__height: 185, name: "alex"}
stringify_map(map)
stringy_map/1
converts a Map
of any depth/nesting into a string.
Deeply nested maps are denoted by "__" (double underscore). See flatten_map/1
for more details.
Examples
iex> map = %{name: "alex", data: %{age: 17, height: 185}}
iex> Useful.stringify_map(map)
"data__age: 17, data__height: 185, name: alex"