What are the characteristics of switch?
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What is optional chaining?
What is core data swift?
What are the collection types that are available in swift?
Can you explain completion handler?
Is swift a good language to learn?
How can you define a base class in swift?
How do I add a header in swift?
How do I create a bridge header in swift 4?
What is difference between class and struct 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?
Why is swift important?
What do you mean by the term “defer”?