What is the difference between retain & assign in iOS operating system?


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More Apple iOS Interview Questions

Why iphone apps are popular?

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What is background mode in ios?

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Have you uploaded app on appstore? What is the process?

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How can we use NSOperation queue? what is the advantage of using it ?

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What is mvc in ios?

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What is the purpose of ios?

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How can mobile application errors be prevented?

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What is mvc design pattern in ios?

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How to parse json?

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Explain me how to parse xml?

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What is nsfetchedresultscontroller? How do you turn on content monitoring?

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What is iphone architecture?

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