42 lines
1.7 KiB
Markdown
42 lines
1.7 KiB
Markdown
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# Hints
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## General
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- A [map][maps] is an associative data structure of key-value pairs.
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- Elixir offers [many useful Map module functions in the standard library][map-module].
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## 1. Define a new high score map
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- It should return an empty [map][maps].
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- [Map module][map-module] functions or literal forms can be useful.
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## 2. Add players to the high score map
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- The resulting map should be returned.
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- [Map module][map-module] contains functions useful for manipulating maps. [One of them][map-put] puts a value in a map under a given key.
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## 3. Remove players from the score map
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- The resulting map should be returned.
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- [Map module][map-module] contains functions useful for manipulating maps. [One of them][map-delete] deletes a key from a map.
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## 4. Reset a player's score
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- The resulting map should be returned with the player's score reset to an initial value.
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- [Map module][map-module] contains functions useful for manipulating maps. [One of them][map-put] puts a value in a map under a given key.
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## 5. Update a player's score
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- The resulting map should be returned with the player's updated score.
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- [Map module][map-module] contains functions useful for manipulating maps. [One of them][map-update] updates a value in a map under a given key.
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## 6. Get a list of players
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- [Map module][map-module] contains functions useful for manipulating maps. [One of them][map-keys] returns a list of all keys in a map.
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[maps]: https://elixir-lang.org/getting-started/keywords-and-maps.html#maps
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[map-module]: https://hexdocs.pm/elixir/Map.html
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[map-put]: https://hexdocs.pm/elixir/Map.html#put/3
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[map-delete]: https://hexdocs.pm/elixir/Map.html#delete/2
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[map-update]: https://hexdocs.pm/elixir/Map.html#update/4
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[map-keys]: https://hexdocs.pm/elixir/Map.html#keys/1
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