What is abstract class in ios?
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What are the delegate methods of mkmapview?
How can we achieve singleton pattern in iOS?
What is nsmanagedobjectcontext? What are the different concurrency types? Explain each type.
What is difference between nsnotification and delegate?
Does ios support multiple inheritance?
What is messaging? How does the runtime handle message passing?
Is react native easy?
Why do we need to use @Synthesize in iOS operating system?
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What is the difference between let and var in swift?
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