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

# filter(_:)

## Declaration

```swift
func filter(_ isIncluded: @escaping (Publishers.TryFilter<Upstream>.Output) -> Bool) -> Publishers.TryFilter<Upstream>
```

## See Also

### Filtering elements

- [tryFilter(_:)](combine/publishers/tryfilter/tryfilter(_:).md)