31 lines
1.4 KiB
Markdown
31 lines
1.4 KiB
Markdown
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# Hints
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## General
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- Read about [`alias` and `import`][getting-started] in the Getting Started guide.
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- Read about [module composition][elixir-school-module-composition] on elixirschool.com.
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## 1. Fix compilation error `Race.__struct__/0 is undefined`
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- An alias can be created with the [`alias`][alias] special form.
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## 2. Fix compilation error `Car.__struct__/0 is undefined`
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- An alias can be created with the [`alias`][alias] special form.
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- The `alias` special form accepts an `:as` option.
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## 3. Fix compilation error `undefined function puts/1`
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- Functions can be imported with the [`import`][import] special form.
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- The [`import`][import] special form accepts an `:only` option. Its value should be a keyword list with function name as keys and function arities as values.
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## 4. Fix compilation error `undefined function default_color/0`
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- Functions can be imported with the [`import`][import] special form.
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- The [`import`][import] special form accepts an `:except` option. Its value should be a keyword list with function name as keys and function arities as values.
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[alias]: https://hexdocs.pm/elixir/Kernel.SpecialForms.html#alias/2
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[import]: https://hexdocs.pm/elixir/Kernel.SpecialForms.html#import/2
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[elixir-school-module-composition]: https://elixirschool.com/en/lessons/basics/modules/#composition
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[getting-started]: https://hexdocs.pm/elixir/alias-require-and-import.html
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