Explain some common features of protocols & superclasses.
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How can you declare a variable in swift?
What is swift programming?
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?
What is mutable and immutable in swift?
What is retain in swift?
How can you define a base class in swift?
What is the characteristics of switch in swift?
Is swift faster than java?
How to declare an empty dictionary in swift?
Is swift a functional language?
Can you make a property optional?
What is “defer”?