Difference between categories and extensions?
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What is difference between 'protocol' and 'delegate'?
What is core data stack?
What is uikit in ios?
What happens if iapplication object does not handle an event?
What is messaging? How does the runtime handle message passing?
How to registering your device with the program portal for iphone development?
How do you check if your code has memory leaks?
What is the difference between strong and retain.
Where can you test Apple iPhone apps if you don’t have the device?
What are blocks in ios?
Different types of persistent stores? Which all types can we have on ios?
What is oops in ios?