Have a variable with multiple types in Swift

Question

I would like to have a variable, which can have multiple types (only ones, I defined), like:

var example: String, Int = 0
example = \"hi\"

Answer 1

No, this is not possible for classes, structs, etc.

But it is possible for protocols.

You can this:

protocol Walker {
func go()
}
protocol Sleeper {
func sleep()
}

var ab = Walker & Sleeper

or even

    struct Person {
    var name: String
    }


var ab = Person & Walker & Sleeper

But I don't recomment use this way.

More useful this:

struct Person: Walker, Sleeper {
/// code
}
var ab = Person