Question

I am parsing some JSON values. I have a NSDictionary and for a certain value the object I get can either be a NSString (e.g. “USA”) or a NSDictionary (e.g. 1=”USA”, 2=”UK” etc).

Is there a way to know when the object is NSString or NSDictionary ?

Thanks.

Answer 1

All classes inherited from NSObject class have a couple of methods to test inheritance, behavior and conformance:

– isKindOfClass:
– isMemberOfClass:
– respondsToSelector:
– conformsToProtocol:

In your case use isKindOfClass: method:

if ([someObject isKindOfClass:[NSString class]]) {...}
if ([someObject isKindOfClass:[NSDictionary class]]) {...}