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iOS Swift Functions and Optionals Optionals Exercise: isDivisible function

Myles Edric C. Chuahiock
Myles Edric C. Chuahiock
2,986 Points

->Bool? Why?

Sorry for my confusion, I want to clarify something before I go ahead.

I understood from the previous videos that adding ? makes it optional. However, how come it is bool instead of Int?

At first, I was thinking that the Int? was referring to the dividend or divisor. However does the Bool? instead focus on return true or return nil and not on dividend or divisor?