iOS — distinguish an NSDictionary from an NSMutableDictionary?

Question

I have the following code fragment:

NSString* value = @\"value\";
NSString* key = @\"key\";
NSMutableDictionary* foo = [NSMutableDictionary dictionary];
NSDictio         


        

Answer 1

It's pretty simple actually, all you need to do is test against the member of the class, like this:

if ([bar isMemberOfClass:[NSMutableDictionary class]]){
    [bar setValue:value forKey: key];
}

iPhone SDK difference between isKindOfClass and isMemberOfClass