RxSwift BehaviorSubject

BehaviorSubject.swift

 //disposeBag from memoy management
    let disposeBag = DisposeBag()
    //Create our BehaviorSubject with a string type
    let subject = BehaviorSubject(value: "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")