Swift 4 how to print text to label - swift

Question

I am trying to print text into a text field like this:
How to do that the right way?
else {
weak var worgnlogin: UILabel! {
worgnlogin.text = ("brugernavn eller password er skrevet forkert")
}
}
Here you have my main ViewController code I have made an array with all users infomation, as I will loop through and get the right user to login:
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var txtUserName: UITextField!
#IBOutlet weak var txtPassword: UITextField!
#IBOutlet weak var worgLogin: UILabel!
let user1 = ["user": "Karsten","userID":"1","userName":"Kalle","passWord":"1234" ]
let user2 = ["user": "Rene","userID":"2","userName":"Rene" ,"passWord":"1234" ]
let user3 = ["user": "Johan","userID":"3","userName":"Johan","passWord":"1234" ]
override func viewDidLoad() {
super.viewDidLoad()
let array = [user1,user2,user3]
UserDefaults.standard.set(array, forKey: "users")
// Do any additional setup after loading the view, typically from a nib.
if UserDefaults.standard.bool(forKey: "ISUSERLOGGEDIN") == true {
//user is already logged in just navigate him to home screen
let homeVc = self.storyboard?.instantiateViewController(withIdentifier: "HomeVC") as! HomeVC
self.navigationController?.pushViewController(homeVc, animated: false)
}
}
#IBAction func authenticateUser(_ sender: Any) {
if txtUserName.text == "userName" && txtPassword.text == "passWord" {
//navigate to home screen
UserDefaults.standard.set(true, forKey: "ISUSERLOGGEDIN")
let homeVc = self.storyboard?.instantiateViewController(withIdentifier: "HomeVC") as! HomeVC
self.navigationController?.pushViewController(homeVc, animated: true)
}else {
displayMyAlertMessage(userMessage: "Brugernavn eller Password er skrevet forkert");
return;
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func displayMyAlertMessage(userMessage:String)
{
let myAlert = UIAlertController(title:"Alert", message:userMessage, preferredStyle: UIAlertController.Style.alert);
let okAction = UIAlertAction(title:"Ok", style:UIAlertAction.Style.default, handler:nil);
myAlert.addAction(okAction);
self.present(myAlert, animated:true, completion:nil);
}
}
i hobe this make a better understanding :)

Answer 1

worgnlogin.text = "brugernavn eller password er skrevet forkert"

Answer 2

First create an IBOutlet for a label:
#IBOutlet weak var worgnLoginLabel: UILabel!
Then in your else statement write:
self.worgnLoginLabel.text = “your message”