Explain how Swift program is deployed?

1 Answers  

---

Swift defines the AnyObject type alias to represent instances of any reference type, and it’s internally defined as a protocol. Consider the following code: var array = [AnyObject]() struct Test {} array.append(Test()) This code generates a compilation error, with the following error message: Type 'Test' does not conform to protocol 'AnyObject' The failure is obvious because a struct is a value and not a reference type, and as such it doesn’t implement and cannot be cast to the AnyObject protocol. Now consider the following code: var array = [AnyObject]() array.append(1) array.append(2.0) array.append("3") array.append([4, 5, 6]) array.append([7: "7", 8: "8"]) struct Test {} array.append(Test()) The array array is filled in with values of type respectively int, double, string, array and dictionary. All of them are value types and not reference types, and in all cases no error is reported by the compiler. Why?

1 Answers  

---

What is the difference between swift and ‘objective-c’ language?

0 Answers  

---

Why we use delegates in swift?

0 Answers  

---

What is weak in swift?

0 Answers  

---

What are the features of swift programming?

0 Answers  

---

What are the higher order functions in swift?

0 Answers  

---

What are ui elements?

0 Answers  

---

What are the two main integer types in swift?

0 Answers  

---

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?

1 Answers  

---

How do you make a bridging header in swift?

0 Answers  

---

How does a swift transfer work?

0 Answers  

---