What are ios apps coded in?
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What are the delegate methods of mkmapview?
Are document objects required for an application? What does they offer?
. Why an app on iOS device behaves differently when running in foreground than in background?
What are the functions of managed object context?
How to change the content of your app in order to change the views displayed in the corresponding window?
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
What are the different store migration options? How do they work?
Differentiate between release and pool drain?
What is libdispatch?
What is singleton in ios swift?
Differentiate between ‘assign’ and ‘retain’ keyword.
How is retain different from assign?