What is the use of static keyword in swift?
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What are the type of integers does swift have?
What is clean swift?
What is core data swift?
What are the various ways to unwrap an optional in swift?
Does swift have a runtime?
What is forced unwrapping? Why is it potentially unsafe?
What is a swift protocol?
Why we use delegates in swift?
What is singleton in swift?
What is new features in swift 4.0?
What is dynamic member lookup swift?
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?