[Ruby] [ruby] Drill output

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Question 1 Let’s create a function to enter a name. If there are periods (.) or spaces other than the name, an error will be displayed.

*If you do not understand, use the API to solve the problem. Reference URL: https://docs.ruby-lang.org/ja/search/

Tips Use the include? method.

include? The include? method is a method to determine whether the specified element is included in the array or character string. image.png Screenshot 2020-08-14 16.50.22.png

Implementation

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Comment

If there is (.) or () in str, it is OK if you branch the condition with include? so that it cannot be registered.

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