exercism/elixir/wine-cellar/HINTS.md

Hints

General

• Read about keyword lists in the official Getting Started guide.
• Read about keyword lists on elixirschool.com.
• Take a look at the documentation of the Keyword module.

1. Explain wine colors

• You need to write the information given in the table as a keyword list.
• Take a look at some examples of how to define a keyword list.

2. Get all wines of a given color

• There is a built-in function for getting the list of all values for a given key.

3. Get all wines of a given color bottled in a given year

• There is a built-in function for getting a single value for a given key.
• You do not need to implement the filtering of bottles on your own. You just need to conditionally use the already-implemented filter_by_year/2 function.

4. Get all wines of a given color bottled in a given country

• There is a built-in function for getting a single value for a given key.
• You do not need to implement the filtering of bottles on your own. You just need to conditionally use the already-implemented filter_by_country/2 function.