How to hide a navigation bar from first ViewController in Swift?

Question

How can I hide a navigation bar from first ViewController or a particular ViewController in swift?

I used the following code in viewDidLoad():

Answer 1

Ways to show Navigation Bar in Swift:

self.navigationController?.setNavigationBarHidden(false, animated: true)
self.navigationController?.navigationBar.isHidden = false
self.navigationController?.isNavigationBarHidden = false