What is extension 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?
What is optional binding?
What is an optional in swift?
Explain the adapter and memento pattern?
What do you do when you realize that your app is prone to crashing?
What is a guard statement?
Is swift written in c++?
What is inheritance in swift?
What is swift programming?
Explain mvc structure.
Explain what is half-open range operator?
Explain the different features of swift programming language?