Dear Bucky!

How do I work along the DRY principle in Swift?
I started a small project and already have yet some functions I have to copy into different viewControllers to use them.

I am pretty sure there MUST be a way to avoid the DRY?

Can you please tell me about it?
Or make a video?

Thanks so much! I highly appreciate your teaching work and I am one of your biggest fan :-)
Kind regards from Germany!