Arrays in Swift

let contacts = [
    Contact(firstName: "first", lastName: "1", email: "some@one1.com", age: 20, courseDuration: 12),
    Contact(firstName: "Second", lastName: "2", email: "some@one2.com", age: 22, courseDuration: 16),
    Contact(firstName: "Third", lastName: "3", email: "some@one3.com", age: 30, courseDuration: 22)
]