ui label not printing the value

Question

Good morning. Why my code doesn't change the value of UILabel? When I click the UIButton the function has to multiply the Int value of the variable meters, filled as text, by 3 and show it in the UILabel.

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var meters: UITextField!
    @IBOutlet weak var button: UIButton!
    @IBOutlet weak var answer: UILabel!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func buttonClicked(_ sender: UIButton) {
        answer.text = String(calculateNumber(meters: Int(meters.text ?? "") ?? 0));
    }

    func calculateNumber(meters : Int) -> Int {
        let result = meters
        print(result)
        return result;
        
    }
}

Answer 1

Check the code, it should work. Check that meters are connected correctly.