Swift (програмски језик)

// Коментар у једном реду

/* Коментар у свифту,
али у више редова */

var implicitInteger = 70
var implicitDouble = 70.0
var explicitDouble: Double = 70

let numberOfApples = 3
let numberOfOranges = 5
let appleSummary = "I have \(numberOfApples) apples."
let fruitSummary = "I have \(numberOfApples + numberOfOranges) pieces of fruit."

println("Hello, world")

let people = ["Anna": 67, "Beto": 8, "Jack": 33, "Sam": 25]
for (name, age) in people {
    println("\(name) is \(age) years old.")
}

"This is a string literal in Swift"

// константа
let const = "This is a string literal in Swift"

// променљива
var str = "This is a string literal in Swift"

// штампање променљиве
print(str)

func sayHello(personName: String) -> String {
    let greeting = "Hello, " + personName + "!"
    return greeting
}

print(sayHello("Jane"))
// исписује "Hello, Jane!"