What is an in-out parameter in swift?

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The following code snippet results in a compile time error: struct IntStack { var items = [Int]() func add(x: Int) { items.append(x) // Compile time error here. } } Explain why a compile time error occurs. How can you fix it?

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What is property observer in swift?

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How is swift different from objective-c?

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Explain completion handler?

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Is swift an oop?

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What are the two main integer types in swift?

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Why do we use swift? Mention some advantages of swift?

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How can we make a property optional in swift?

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What is static function in swift?

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Explain the common execution states for a swift ios app (ios application lifecycle).

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Is swift easier than java?

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