.swift

@Published private (set) var brokenRules: [BrokenRule] = [BrokenRule]()
   
    func validate()  {
       
        brokenRules.removeAll() 
 
        let rules = [
            "Firstname": _firstname.validationError,
            "Lastname": _lastname.validationError,
            "Username": _username.validationError,
            "Password": _password.validationError
        ]
       
        _ = rules.compactMap { pair -> Void in
           
            guard let errorMessage = pair.1?.failureReason else { return  }
            brokenRules.append(BrokenRule(name: pair.0, message: errorMessage))
        }
    }