Swift - Remove a title from backBarButtonItem, but keep the arrow [duplicate]

Question

How can I remove a title from back button in navigation bar, but I want to keep the arrow.

Answer 1

Set the title text to an empty string.

navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)

Edit: As per comments below this will only work if you set the back button before you segue to the view controller with the button in it.

Answer 2

If you do not need the title, do this in viewDidLoad of your previous ViewController

title = ""

If you need the title for first ViewController, toggle setTitle between viewWillAppear and viewWillDisAppear of previous viewController will do.