Swift 5 on return button action

Swift 5:
class YourClass: UIViewController, UITextFieldDelegate {
  
  	// will trigger when return button from keyboard is pressed
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        performAction(textField)
        return true
    }
  
  	private func preformAction(_ textField:UITextField){
    	//... code here ...
    }
}

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