33 lines
1.7 KiB
Markdown
33 lines
1.7 KiB
Markdown
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# Hints
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## General
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- Read about keyword lists in the official [Getting Started guide][getting-started-keyword-lists].
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- Read about keyword lists on [elixirschool.com][elixir-school-keyword-lists].
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- Take a look at the [documentation of the `Keyword` module][keyword].
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## 1. Explain wine colors
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- You need to write the information given in the table as a keyword list.
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- Take a look at some [examples][keyword-examples] of how to define a keyword list.
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## 2. Get all wines of a given color
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- There is a [built-in function][keyword-get-values] for getting the list of all values for a given key.
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## 3. Get all wines of a given color bottled in a given year
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- There is a [built-in function][keyword-get] for getting a single value for a given key.
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- 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.
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## 4. Get all wines of a given color bottled in a given country
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- There is a [built-in function][keyword-get] for getting a single value for a given key.
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- 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.
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[getting-started-keyword-lists]: https://elixir-lang.org/getting-started/keywords-and-maps.html#keyword-lists
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[elixir-school-keyword-lists]: https://elixirschool.com/en/lessons/basics/collections/#keyword-lists
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[keyword]: https://hexdocs.pm/elixir/Keyword.html
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[keyword-get-values]: https://hexdocs.pm/elixir/Keyword.html#get_values/2
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[keyword-get]: https://hexdocs.pm/elixir/Keyword.html#get/3
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[keyword-examples]: https://hexdocs.pm/elixir/Keyword.html#module-examples
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