# Map Sorter
Sorts a list of `maps` as per a list of sort specs
(ascending/descending keys).
Also works for keywords or structures implementing the Access behaviour.
## Installation
The package can be installed by adding `:map_sorter` to your list of
dependencies in `mix.exs`:
```elixir
def deps() do
[
{:map_sorter, "~> 0.1"}
]
end
```
## Usage
```elixir
require MapSorter
MapSorter.sort(maps, sort_specs)
```
Sorts the `maps` as per the `sort specs` (compile time or runtime).
`sort specs` can be implicit, explicit or mixed:
- [:dob, :name] - _implicit_ ≡ [_asc:_ :dob, _asc:_ :name]
- [:dob, desc: :name] - _mixed_ ≡ [_asc:_ :dob, desc: :name]
- [asc: :dob, desc: :name] - _explicit_
## Examples
```elixir
require MapSorter
people = [
%{name: "Mike", likes: "ski, arts", dob: "1992-04-15"},
%{name: "Mary", likes: "travels" , dob: "1992-04-15"},
%{name: "Ann" , likes: "reading" , dob: "1992-04-15"},
%{name: "Ray" , likes: "cycling" , dob: "1977-08-28"},
%{name: "Bill", likes: "karate" , dob: "1977-08-28"},
%{name: "Joe" , likes: "boxing" , dob: "1977-08-28"},
%{name: "Jill", likes: "cooking" , dob: "1976-09-28"}
]
MapSorter.sort(people, asc: :dob, desc: :likes)
```
The above code will sort `people` ascendingly by `:dob` and
descendingly by `:likes` as follows:
```elixir
[
%{name: "Jill", likes: "cooking" , dob: "1976-09-28"},
%{name: "Bill", likes: "karate" , dob: "1977-08-28"},
%{name: "Ray" , likes: "cycling" , dob: "1977-08-28"},
%{name: "Joe" , likes: "boxing" , dob: "1977-08-28"},
%{name: "Mary", likes: "travels" , dob: "1992-04-15"},
%{name: "Mike", likes: "ski, arts", dob: "1992-04-15"},
%{name: "Ann" , likes: "reading" , dob: "1992-04-15"}
]
```