What is delegate?
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what is navigation controller?
Can you please explain the difference between nsarray and nsmutablearray?
what is universal Application?
What is a retain cycle?
Difference between retain and assign ?
What is encapsulation in ios?
What is spritekit and what is scenekit?
What json framework supported by ios?
What is difference between mvc and mvvm in ios?
Which language is best for ios development?
What is push notification?
An app is loaded into memory but is not executing any code. In which state will be in?