Learn SwiftUI (Day 4/100)

import Cocoa // ## Type annotations let surname: String = "Lasso" var score: Int = 0 var isAuthenticated: Bool = true var albums: [String] = ["Red", "Fearless"] var user: [String: String] = ["id": "@twostraws"] var books: Set<String> = Set(["Dune 1", "Dune 2"]) // empty string array var cities: [String] = [] // or var clues = [String]() // it is legit that declare the type to a constant and assign its value later let username: String // lots of complex logic username = "@twostraws" // lots more complex logic print(username) // ## Checkpoint 2 /* Create an array of strings, then write some code that prints the number of items in the array and also the number of unique items in the array. */ var names = ["John", "Doe", "John", "Mike"] print(names.count) print(Set(names).count)