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iOS

Posted by MIK Agency
MIK Agency
22,496 Points

Enumeration in swift

I was watching stanford university course for iOS when suddenly...

https://www.youtube.com/watch?v=OJUsghbtbF8 around 11:00 he starts creating an enum like this:

enum Op {
    case Operand(Double)
    case UnaryOperation(String, Double -> Double)
    case BinaryOperation(String, (Double, Double) -> Double)
}

Can someone please explain why he used types like those doubles, and a function inside an enum.

Please use as much examples as possible, that usually helps a lot.

Thank you!