gistfile1.swift

// Swift in beta 4
if (optional?.methodReturningBool()) {
    println("awesome")
}
 
// Swift in beta 5
if (optional != nil && optional!.methodReturningBool()) {
    println("damnit...")
}
 
// Why not have our cake and eat it too?
// This would be great:
 
var optional: Bool = nil
println(optional?) // false
optional = false
println(optional?) // true