Ask a general question in Swift

UIViewController+askGeneral.swift

import UIKit

extension UIViewController {
    func ask(title: String?, question: String?, positiveButtonTitle: String = "Yes", negativeButtonTitle: String = "No", isDangerousAction: Bool = false, delegate: @escaping (_ agreed: Bool) -> Void) {
        let alert = UIAlertController(title: title, message: question, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: positiveButtonTitle, style: isDangerousAction ? .destructive : .default) { (_) in
            delegate(true)
        })
        alert.addAction(UIAlertAction(title: negativeButtonTitle, style: .cancel) { (_) in
            delegate(false)
        })
        present(alert, animated: true, completion: nil)
    }
}