Extensions - Computed properties

 

extension Notification.Name {

    static let noti1 = Notification.Name("Noti")

    

}

extension UIColor {

    static let myBackgroundColor = UIColor.red

    static let myLabelColor = UIColor.gray

}

extension String {

    var localized: String {

        var result = Bundle.main.localizedString(forKey: self, value: nil, table: nil)

        if result == self {

            result = Bundle.main.localizedString(forKey: self, value: nil, table: "Invoice")

        }

        return result

    }

    

    var capital: String {

        return self.uppercased()

    }

}

//MARK: Computed Properties

extension Int {

    var sq: Int {

        return self * self

    }

}

class ClassA: NSObject {

    var property:Int? {

        willSet(newProperty){

            print("property - willSet called - value - \(newProperty!)")

        }

        didSet{

            print("property - didSet called")

        }

    }

}