Attaches the specified subscriber to this publisher.
SDKs
- iOS 13.0+Beta
- macOS 10.15+Beta
- Mac Catalyst 13.0+Beta
- tvOS 13.0+Beta
- watchOS 6.0+Beta
- Xcode 11.0+Beta
Framework
- Combine
Declaration
func subscribe<S>(_ subscriber: S) where S : Subscriber, Self.Failure == S.Failure, Self.Output == S.Input
Parameters
subscriberThe subscriber to attach to this
Publisher. After attaching, the subscriber can start to receive values.
Discussion
Always call this function instead of receive(subscriber:). Adopters of Publisher must implement receive(subscriber:). The implementation of subscribe(_:) in this extension calls through to receive(subscriber:).