# append(_:) Appends a publisher’s output with the specified sequence. ``` func append(_ elements: S) -> Publishers.Concatenate> where S : Sequence, Self.Output == S.Element ``` ## Parameters `elements` A sequence of elements to publish after this publisher’s elements. ## Return Value A publisher that appends the sequence of elements after this publisher’s elements. ## Discussion Use [`append(_:)`](/documentation/Combine/Publisher/append(_:)-69sdn) to append a sequence to the end of a publisher’s output. In the example below, the [`append(_:)`](/documentation/Combine/Publisher/append(_:)-69sdn) publisher republishes all elements from `groundTransport` until it finishes, then publishes the members of `airTransport`: ``` let groundTransport = ["car", "bus", "truck", "subway", "bicycle"] let airTransport = ["parasail", "jet", "helicopter", "rocket"] cancellable = groundTransport.publisher .append(airTransport) .sink { print("\($0)", terminator: " ") } // Prints: "car bus truck subway bicycle parasail jet helicopter rocket" ``` --- 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)