Failable Init

class FailInit {

    var name : String?
    init?( name: String){
        if name.isEmpty {
            return nil  //available in failure init methods
        }
        self.name = name
    }

    func desc() {
        print("name is \(self.name!)")
    }

}



var f = FailInit(name:"kim")
f!.desc()
var m = FailInit(name:"")   //init failed
if m == nil {
    print("nil found")
}



/*
 name is kim
 nil found
 */