What is mutable and immutable in swift?

0 Answers  

---

What is Initialization ?

1 Answers  

---

Mention what is the characteristics of Switch in Swift?

1 Answers  

---

What are the collection types available in swift?

0 Answers  

---

What is floating point number in swift? What are the different floating point numbers in swift?

0 Answers  

---

Is swift hard to learn?

0 Answers  

---

Why we use delegates in swift?

0 Answers  

---

How base-class is defined in Swift?

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  

---

Is swift an object-oriented programming language?

0 Answers  

---

What is indexpath in swift?

0 Answers  

---

What is the difference between nil and none in swift?

0 Answers  

---