# Publishers.IgnoreOutput A publisher that ignores all upstream elements, but passes along the upstream publisher’s completion state (finished or failed). ``` struct IgnoreOutput where Upstream : Publisher ``` ## Topics ### Creating an ignore output publisher [`init(upstream:)`](/documentation/Combine/Publishers/IgnoreOutput/init(upstream:)) Creates a publisher that ignores all upstream elements, but passes along the upstream publisher’s completion state (finish or failed). ### Declaring supporting types [`Publishers.IgnoreOutput.Output`](/documentation/Combine/Publishers/IgnoreOutput/Output) The kind of values published by this publisher. [`Publishers.IgnoreOutput.Failure`](/documentation/Combine/Publishers/IgnoreOutput/Failure) The kind of errors this publisher might publish. ### Inspecting publisher properties [`upstream`](/documentation/Combine/Publishers/IgnoreOutput/upstream) The publisher from which this publisher receives elements. ### Comparing publishers [`==(_:_:)`](/documentation/Combine/Publishers/IgnoreOutput/==(_:_:)) Returns a Boolean value that indicates whether two publishers are equivalent. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)