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CREATE TABLE "Album"
(
    "AlbumId" INT NOT NULL,
    "Title" VARCHAR(160) NOT NULL,
    "ArtistId" INT NOT NULL,
    CONSTRAINT "PK_Album" PRIMARY KEY  ("AlbumId")
);

CREATE TABLE "Artist"
(

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// Lazy evaluating
let newNumbersArray = [1, 2, 3, 4, 5]

let firstNumber = newNumbersArray.lazy.map({ $0 * 2 }).first!
print(firstNumber)

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let numbers = [9, 14, 34, 46, 67]

// Imperative example [OOP]
var doubledNumbers = [Int]()
for number in numbers {
    doubledNumbers.append(number * 2)
}
print(doubledNumbers)

// Declarative example [FP]

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// With for in loop
var agesSum = 0

for user in queue {
    agesSum += user.age
}

print(agesSum)

// With reduce method:

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// Using for in loop
var filteredUsers: [User] = []

for user in queue {
    print(user.age)
    if user.age > 45 {
        filteredUsers += [user]
    }
}

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// With for in loop:
for user in queue {
    print("Hi! My name is \(user.fullName) and I'm \(user.age) years old.")
}

// You can write as:
let newQueue = queue.map { (user: User) -> String in
    return "Hi! My name is \(user.fullName) and I'm \(user.age) years old."
}
print(newQueue)

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struct User {
    let id: Int
    let fullName: String
    let age: Int
    
    init(id: Int, fullName: String, age: Int) {
        self.id = id
        self.fullName = fullName
        self.age = age
    }

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self.yourImageView.downloadImage("https://static.website.com/image_url.png")

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extension UIImageView {
  func getDataFromUrl(url:String, completion: ((data: NSData?) -> Void)) {
    NSURLSession.sharedSession().dataTaskWithURL(NSURL(string: url)!) { (data, response, error) in
      completion(data: NSData(data: data!))
    }.resume()
  }

  func downloadImage(url:String){
    getDataFromUrl(url) { data in
      dispatch_async(dispatch_get_main_queue()) {

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func downloadImage(url:String){
  getDataFromUrl(url) { data in
    dispatch_async(dispatch_get_main_queue()) {
      self.contentMode = UIViewContentMode.ScaleAspectFill
      self.image = UIImage(data: data!)
    }
  }
}