What type of objects are basic data types in swift?
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What is abstract class in swift?
Is swift a functional language?
Why do we need closure in swift?
Consider the following code: var array1 = [1, 2, 3, 4, 5] var array2 = array1 array2.append(6) var len = array1.count What’s the value of the len variable, and why?
What is selector swift?
How can we define a base class in swift?
What are the collection types that are available in swift?
Is swift hard to learn?
What is the use of double question mark “??” In swift?
What are the differences between a struct and a class?
What is swiftnet?
Is swift memory safe?