Hiding UINavigationItem's bar button

Question

I have added a BarButton item to the left of the nav.bar through Interface Builder and in the code I want this only to show in my table view\'s edi

Answer 1

func showOrHideButton() {
        isEnabled ? showButton() : hideButton()
    }

 func showButton() {
        navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .compose, target: self, action: #selector(action))
    }

    func hideButton() {
        navigationItem.leftBarButtonItem = nil
    }