How to check viewcontroller is added in stack or not

Question

I have two view controllers. I have navigated from one view to another view by press the button to using below code.

 *let secondViewController = self.storyb         


        

Answer 1

Here's another solotion:

    guard let controllersInStack = navigationController?.viewControllers else { return }
    if let yourViewController = controllersInStack.first(where: { $0 is YourViewController }) {
        // Do what you want with yourViewController
    }