NSDictionary <null> 값 비교 처리

# 방법 1 if([[dictionary objectForKey:@"Field"] isKindOfClass:[NSNull class]]){ } # 방법 2 if ([dictionary objectForKey:@"Field"] == (NSString *)[NSNull null]){ } # 방법 3 if ([dictionary objectForKey:@"Field"] == (id)[NSNull null]) { }

2014.11.25