---
title: "contains(_:)"
framework: combine
role: symbol
role_heading: Instance Method
path: "combine/publishers/sequence/contains(_:)"
---

# contains(_:)

## Declaration

```swift
func contains(_ output: Elements.Element) -> Result<Bool, Failure>.Publisher
```

## See Also

### Applying matching criteria to elements

- [contains(where:)](combine/publishers/sequence/contains(where:).md)
- [tryContains(where:)](combine/publishers/sequence/trycontains(where:).md)
- [allSatisfy(_:)](combine/publishers/sequence/allsatisfy(_:).md)
- [tryAllSatisfy(_:)](combine/publishers/sequence/tryallsatisfy(_:).md)