Ceri-anne

import Foundation

func flagEmoji(for countryCode: String) -> String? {
    guard Locale.isoRegionCodes.contains(countryCode) else { return nil }
    return countryCode
        .uppercased()
        .unicodeScalars
        .map { 127397 + $0.value }
        .compactMap { UnicodeScalar($0) }
        .map { String($0) }

Ceri-anne

import Foundation

// Update these fields
let nextRetroDate = "01/01/2021"

let team = [
    "Name 1",
    "Name 2",
    "Name 3"
]

Ceri-anne

import Foundation

struct User: Decodable {
    var firstName: String
    var lastName: String
    var pets: [Pet]
    
    struct Pet: Decodable {
        var species: String
        var breed: String

Ceri-anne

func run() {

    let arguments = CommandLine.arguments

    if arguments.count > 1 {

        let greeting = arguments[1]

        print(greeting)

Ceri-anne

import Foundation

func run() {

let arguments = CommandLine.arguments

print(arguments)

print("Hello, World! This is my command line tool")

Ceri-anne

import Foundation

print(“Hello, World! This is my command line tool”)

Ceri-anne

let midfielders = ["Barnes", "McManaman", nil, nil, "Gerrard"]

let midField = midfielders.compactMap { $0?.uppercased() }

print(midField)

Ceri-anne

let playersUpper = players.flatMap{ $0.map { $0.uppercased() } } 

print(playersUpper)  
// Returns ["OWEN", "FOWLER", "RUSH", "BARNES", "MCMANAMAN", "GERRARD", "CARRAGER", "THOMPSON", "NICOL"]

Ceri-anne

let allPlayers = players.flatMap{ $0.uppercased() }      

Ceri-anne

let forwards = ["Owen", "Fowler", "Rush"]
let midfielders = ["Barnes", "McManaman", "Gerrard"]
let defenders = ["Carrager", "Thompson", "Nicol"]

let players = [forwards, midfielders, defenders]

let allPlayers = players.flatMap { $0 }

print(allPlayers)  // returns ["Owen", "Fowler", "Rush", "Barnes", "McManaman", "Gerrard", "Carrager", "Thompson", "Nicol"]