NeoSPU

//: Playground - noun: a place where people can play

import UIKit

// =============== 1 =====================

func changeItem<T>(_ array: [T]) -> [T] {
    guard !array.isEmpty else {
        print("\(array) -> Array is Empty!")
        return array

NeoSPU

import UIKit

//================ # 1 ==================

let stringArray = ["Mr. Smith", "antony", "2", "cat Mr. Jons", "17", "other", "Mr.", "27", "home"]

func isInsertText(_ text: String) -> Bool {
    return text.contains("Mr.")
}

NeoSPU

import UIKit
import PlaygroundSupport

//1
print("=============== # 1 ===============\n")

enum Rank: Int {
    case ace = 1, two, three, four, five
    case six, seven, eight, nine, ten
    case jack, queen, king