GrantJEmerson

var 📧inbox = [
    "Don't miss this weekend's sale at Bob's Pizzeria!",
    "Urgent: Production Database Backup Failed",
    "Wednesday Developer Meetup Reminder"
]

while let 📧 = 📧inbox.popLast() {
    print(📧)
}

GrantJEmerson

import Foundation

let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let url = documentsDirectory.appendingPathComponent("Closet Contents").appendingPathExtension("txt")

var closet = "👖x2 👕x5 👔x3 👟x2 👞x2"

do {
    try closet.write(to: url, atomically: true, encoding: .utf8)
} catch {

GrantJEmerson

import Foundation

@objcMembers class Craft: NSObject {
    let name: String
    let maxAltitude: Int
    let maxSpeed: Int
    
    init(name: String, maxAltitude: Int, maxSpeed: Int) {
        self.name = name
        self.maxAltitude = maxAltitude

GrantJEmerson

let saturdayFoodLog = ["🍎": 2, "🥗": 2, "🥚": 3, "🥜": 20, "🍪": 2]
let sundayFoodLog = ["🥚": 1, "🥗": 1, "🍎": 1, "🍪": 1, "🌭": 2, "🥩": 1]
let weekendFoodLog = saturdayFoodLog.merging(sundayFoodLog) { $0 + $1 }
print(weekendFoodLog) // ["🥩": 1, "🥚": 4, "🥗": 3, "🍎": 3, "🥜": 20, "🌭": 2, "🍪": 3]

GrantJEmerson

struct 👤: Identifiable {
    static var peopleCount = 0
    
    let name: String
    let height: Float
    
    var id: String = {
        Self.peopleCount += 1
        return "\(#function) \(Self.peopleCount)"
    }()

GrantJEmerson

import Foundation

typealias HexadecimalColor = UInt32

let 🎨: HexadecimalColor = 0xFF872C // RGB(255, 135, 44)
let 🔴 = (🎨 & 0xFF0000) >> 16 // 255
let 💚 = (🎨 & 0x00FF00) >> 8 // 135
let 🔵 = 🎨 & 0x0000FF // 44

GrantJEmerson

import Foundation

let buffet = ["🍕", "🍔", "🌭", "🥗", "🌯", "🥘"]
let dinner = buffet.randomElement()!
print("Tonight I will eat \(dinner).") // Tonight I will eat 🍕.

GrantJEmerson

let 🚀Velocities = [700.55, 500.3, 1015.0, -50.0, -2000.25]
let maxVelocity = 🚀Velocities.reduce(0, Double.maximumMagnitude)
print("\(maxVelocity) mph") // -2000.25 mph

GrantJEmerson

let binaryMessage = "101001011001000101111011110101011"
let 📞🔢 = Int(binaryMessage, radix: 2)!
print(📞🔢) // 5555550123

GrantJEmerson

import Foundation

let 🇺🇸🧊 = Measurement(value: 13, unit: UnitTemperature.fahrenheit)
let 🇬🇧🧊 = 🇺🇸🧊.converted(to: UnitTemperature.celsius)

print("It's \(Int(🇺🇸🧊.value))ºF or \(Int(🇬🇧🧊.value))ºC outside! 🥶")
// It's 13ºF or -10ºC outside! 🥶