Tells the subscriber that the publisher has completed publishing, either normally or with an error.
- 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
Completion case indicating whether publishing completed normally or with an error.
Receiving Life Cycle Events
A signal that a publisher doesn’t produce additional elements, either due to normal completion or an error.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software