---
title: Publishers.Comparison.Output
framework: combine
role: symbol
role_heading: Type Alias
path: combine/publishers/comparison/output
---

# Publishers.Comparison.Output

The kind of values published by this publisher.

## Declaration

```swift
typealias Output = Upstream.Output
```

## Discussion

Discussion This publisher uses its upsteam publisher’s output type.

## See Also

### Declaring supporting types

- [Publishers.Comparison.Failure](combine/publishers/comparison/failure.md)