IOS: Check Core Data Object is null

Apr 9, 2014 Q&A

Code

@property (nonatomic,retain) TipRecord*record;

To check the object in the code above, that should check whether the object is nil.

Code

if(self.record == nil)

Please note that, that is a pointer. If it has not initialized yet, it will be nil, not NSNull null.

Code

if([self.record isEqualToString [NSNull null])

null is a value for nothings, all pointer won't be null, unless you assign that is null object to there.

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