import Foundation
let object: Any = "This is a string message."
if object is String {
   print("Object is a type of string.")
} else {
   print("Object is not a type of string.")
}

Object is a type of string.

import Foundation
let object: [Any] = ["PHP", "Java", "Swift", "Python", "JavaScript", "GoLang"]
if object is [String] {
   print("Object is the type of an array of strings.")
} else {
   print("Object is not the type of an array of strings.")
}

Object is the type of an array of strings.

import Foundation
let object: [Any] = ["PHP", "Java", "Swift", "Python", "JavaScript", "GoLang"]
if let array = object as? [String] {
   print("Output array: \(array)")
   print("Object is the type of an array of strings.")
} else {
   print("Object is not the type of an array of strings.")
}

Output array: ["PHP", "Java", "Swift", "Python", "JavaScript", "GoLang"]
Object is the type of an array of strings.