Explain when to use nsarray and nsmutablearray. Which one is faster and threadsafe?

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What is the difference between method and type?

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What is difference between array and nsarray?

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What are nsautoreleasepool and how can we use them?

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What is the difference between polymorphism and abstraction?

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What happens if you add your just created object to a mutable array, and you release your object?

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Why do we require class extension?

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What is an example of tangible property?

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Tell me about important protocol being used in objective c?

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What is a function file?

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What is a delegation protocol?

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How declare methods in objective c?

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What is dynamic dispatch method?

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Why swift is better than objective c?

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Is objective c superset of c?

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