What is a good example to differentiate between fileprivate and private in Swift3

Question

This article has been helpful in understanding the new access specifiers in Swift 3. It also gives some examples of different usages of fileprivate

Answer 1

Although @MartinR's and @StephenChen's answer are perfect, Swift 4 changes things a little bit.

Private is now considered as private to a class in which it is declared and also to its extensions.

FilePrivate is considered to be private in that file be it a class in which the variable is defined, it's extension, or any other classes defined in that same file.