Combine5.swift

let subject = PassthroughSubject<String, Never>()
let publisher = subject.eraseToAnyPublisher()


let subscriber1 = publisher.sink(receiveValue: { value in
    print(value)
})

//subscriber1 will recive the events but not the subscriber2
subject.send("Event1")
subject.send("Event2")


let subscriber2 = publisher.sink(receiveValue: { value in
    print(value)
})
//Subscriber1 and Subscriber2 will recive this event
subject.send("Event3")