Question

I want to create a button in my application that will delete all entries in core data as well as all of the NSUserDefaults. What method would I use to do this?

Answer 1

This method:

[[NSUserDefaults standardUserDefaults] setPersistentDomain:[NSDictionary dictionary] forName:[[NSBundle mainBundle] bundleIdentifier]];

resets the defaults to the registration domain, which means that removeObjectForKey is called to all the keys. I found it from this link. Hope that helps!