Is passing two nil paramters to initWithNibName:bundle: method bad practice (i.e. unsafe or slower)?

Question

According to a comment in UIViewController regarding initWithNibName:bundle:

If you invoke this method with a nil nib name, then this

Answer 1

It's not unsafe or slow. It just means that there will be an extra check to see that the NIB with the same name as your class really exists in the bundle, then it will be loaded exactly as if you had passed the NIB name. It won't cause problems unless you decide to change how you name your NIBs. In face, there's a whole discussion about how -initWithNibName:bundle: is a bad initializer, and just using -init is better.