Is there any real difference between:
id value;
BOOL compare1 = [value isMemberOfClass:[SomeClass class]];
BOOL compare2 = [value class] == [SomeClass class];
to check if value is a SomeClass object?
views:
41answers:
1
+4
A:
If value is an NSProxy, isMemberOfClass: will properly check the proxied object, the other construct, I believe, won't (I think it will clumsily duplicate isProxy:).
Alex Martelli
2010-06-27 05:33:10
Yup -- you are correct (I forgot about NSProxy). Deleted my answer. Use `isMemberOfClass:` as it is correct always whereas `==` has holes.
bbum
2010-06-27 05:40:34