Swift - Array of Any to Array of Strings

Question

How can I cast an array initially declared as container for Any object to an array of Strings (or any other object)? Example :

var array: [Any] = []
.
.
.
array = strings // strings is an array of Strings

I receive an error : "Cannot assign value of type Strings to type Any"

How can I do?

Answer 1

Updated to Swift 5

var arrayOfAny: [Any] = []
var arrayOfStrings: [String] = arrayOfAny.compactMap { String(describing: $0) }

Answer 2

You can't change the type of a variable once it has been declared, so you have to create another one, for example by safely mapping Any items to String with flatMap:

var oldArray: [Any] = []
var newArray: [String] = oldArray.flatMap { String($0) }