Function name

Explain
1
  • If x is callable, and x’s return type is type, then x should be TitleCase.
  • If x is otherwise callable, then x should be camelCase.

Io.File.writer()'s return type is Writer, shouldn’t it be named to ‘Writer()’ here? Or am I wrong with knowledge of “callable”?

2

it returns an instance of a type, so it uses camelCase (which starts lowercase).

If it were to return a type itself, then it would use PascalCase (which starts UpperCase)

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3

It is a callable, but it doesn’t return a type; it returns a value/instance of type Writer.

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