Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’m looking for a way to test if to index paths are equal, and by equal I mean equal on every level? I tried compare: but it seems not to work, I always get true when compared with NSOrderedSame even if the indexes are definitely not the same.
Almost all Objective-C objects can be compared using the
isEqual:method. So, to test equality, you just need[itemCategoryIndexPath isEqual:indexPath], and you’re good to go. Now, this works becauseNSObjectimplementsisEqual:, so all objects automatically have that method, but if a certain class doesn’t override it,isEqual:will just compare object pointers.In the case of
NSIndexPath, since theisEqual:method has been overridden, you can compare the objects as you were to expect. But if I were to write a new class,MyObjectand not override the method,[instanceOfMyObject isEqual:anotherInstanceOfMyObject]would effectively be the same asinstanceOfMyObject == anotherInstanceOfMyObject.You can read more in the NSObject Protocol Reference.