Kas sa saad loetleda erinevaid Publisheri tüüpe, mida kasutatakse Combine raamistikus?

In the Combine framework (Apple), there are several main types of Publisher used for creating and managing data streams:

• Just — publishes a single value and completes.

• Empty — publishes no values and completes immediately.

• Fail — immediately completes with an error.

• Future — publishes a single value or error in the future, asynchronously.

• PassthroughSubject — allows manual sending of values to subscribers, does not store the last value.

• CurrentValueSubject — similar to PassthroughSubject, but stores the current value and sends it to new subscribers.

• Timer.TimerPublisher — publishes values at specified time intervals.

• NotificationCenter.Publisher — publishes notifications from NotificationCenter.

Example of using PassthroughSubject:

import Combine

let subject = PassthroughSubject<String, Never>()

let subscription = subject.sink { value in
    print("Received value: \(value)")
}

subject.send("Hello")
subject.send("Combine")