IsMemberOfClass versus comparing classes with ==

Question

Is there any real difference between:

id value;
BOOL compare1 = [value isMemberOfClass:[SomeClass class]];
BOOL compare2 = [value class] == [SomeClass class];

to check if the valueobject is SomeClass?

Answer 1

If it valueis NSProxy, it isMemberOfClass:will correctly check the proxy object, another design, I believe, will not (I think this is uncomfortable duplicates isProxy:).