swift protocol 'weak' cannot be applied to non-class type

Question

I\'m a bit confused. What\'s the difference between protocol A : class { ... } and protocol A{ ... }, and which one we should use in swift?

<

Answer 1

You can make the protocol derive from any class type like NSObject, or AnyObject. e.g :

protocol TopNewsTableDelegate  : AnyObject{
  func topNewsTableDidLoadedStories()
}