What is the difference between instancesRespondToSelector and respondsToSelector in Objective-C?

Question

The only difference I observed on my own is that respondsToSelector\'s receiver can either be a class or an instance, while instancesRespondToSelector

Answer 1

One difference is respondsToSelector can't tell you if an instance inherits a method from its superclass, so if you want to do something like [super respondsToSelector:_cmd]; it wont work, you need to to [[self superclass] instancesRespondToSelector:_cmd];