У вашего броузера проблема в совместимости с HTML5
Code below:
//: Playground - noun: a place where people can play
import Foundation
class Car: NSObject {
var Carname: String
var maxSpeed: Int
init(name: String, speed: Int) {
self.Carname = name
self.maxSpeed = speed
super.init()
}
/// default speed is 100
convenience init(name: String) {
self.init(name: name, speed: 100)
}
/// default name is AJ
convenience init(speed: Int) {
self.init(name: "AJ", speed: speed)
}
}
var a = Car(speed: 120)
println(a.maxSpeed)