---
title: receiveOutput
framework: combine
role: symbol
role_heading: Instance Property
path: combine/publishers/breakpoint/receiveoutput
---

# receiveOutput

A closure that executes when the publisher receives output from the upstream publisher, and can raise a debugger signal by returning a true Boolean value.

## Declaration

```swift
let receiveOutput: ((Upstream.Output) -> Bool)?
```

## See Also

### Inspecting publisher properties

- [upstream](combine/publishers/breakpoint/upstream.md)
- [receiveSubscription](combine/publishers/breakpoint/receivesubscription.md)
- [receiveCompletion](combine/publishers/breakpoint/receivecompletion.md)