RxSwift PublishSubject type

PublishSubject.swift

    //disposeBag from memoy management
    let disposeBag = DisposeBag()
    //Create our PublishSubject with a string type
    let subject = PublishSubject<String>()
    //ErrorType will be used for emitting an Error event
    enum Error: ErrorType {
        case Test
    }
    
    //emit our first event before any subscription to the subject
    subject.on(.Next("Bob"))
    
    //New Subscription
    subject.subscribe {
        print($0)
        }
        .addDisposableTo(disposeBag)
    
    

    
    //emits
    subject.on(.Next("Hello"))
    subject.onNext("World") //onNext is a Convenience method equivalent to on(.Next(element: E))
    
    
    
    //New Subscription
    let secondSubscription = subject.subscribe {
        print("second subscription:", $0)
    }
    //add it to the disposeBag
    secondSubscription.addDisposableTo(disposeBag)
    //emit
    subject.onNext("Ibrahim")
    
    //dispose our second subscriber
    secondSubscription.dispose()
    //emit
    subject.onNext("After disposing the second subscriber")
    
    //emit an Error event
    subject.onError(Error.Test) // or subject.onCompleted()
    
    //New Subscription
    let ThirdSubscription = subject.subscribe {
        print("third subscription:", $0)
    }
    
    //add it to the disposeBag
    ThirdSubscription.addDisposableTo(disposeBag)