What are methods in swift?
- 0 Answers
- 442 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
How you define variables in swift language?
What is nil in swift?
Explain some common features of protocols & superclasses.
What are properties in swift?
What is the difference between nil and none in swift?
What is swift? How is it different from objective-c?
Where can we test the apple iphone apps if we don’t have an ios device?
What is floating point number in swift? What are the different floating point numbers in swift?
What is a swift class?
How does closure work in swift?
What is an attribute in swift?
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?
Apple iOS 
