Syntax of Protocol

protocol SampleProtocol
 {
// protocol definition goes here
}

• Multiple protocols can be intialized just by commas

struct SampleStructure: MyProtocol, NewProtocol {
// structure intialization goes here
}

Property requirements

• prefixed with var keyword
• gettable and settable properties

  • writing { get set } after type declaration

  • protocol SampleProtocol {
    var mustBeSettable: Int { get set }
    var doesNotNeedToBeSettable: Int { get }
    }
    

Code snippet

protocol items {
    var type:String{get}
    var name:String{get}
    var phoneNumber:String{get}
}
class Person:items{
    var type:String
    var name:String
    var phoneNumber:String
init(type: String, name : String, phoneNumber: String) {
        self.type = type
        self.name = name
        self.phoneNumber = phoneNumber
    }

Project

https://bodyguardapp.com.au