What is init() in swift?
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Why we use delegates in swift?
Mention what are the collection types available in Swift?
What is a deinitializer in swift?
How do I create a swift file in xcode?
What is clean swift?
What is nsmutablearray in swift?
What are jsonencoder and jsondecoder?
Can you explain any three-shift pattern matching techniques?
Is swift written in c++?
How can you write a multiple line comment 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?
How many access levels are present in swift?