フリー問題

問題文

A function inside an uploaded library returns a value but the metadata page shows no return parameter to configure. What does the code have to do?

選択肢

1. Add a comment above the function that names the return value so the page reads it and shows the parameter for configuration.
2. Set the data type of the return value on the library page before the upload so that the page shows the parameter.
3. Assign the result to a named variable and return that variable so the parameter appears for configuration.
4. Declare the function inside another function and return the result of the inner one so the parameter appears for configuration.