---
title: "tryScan(_:_:)"
framework: combine
role: symbol
role_heading: Instance Method
path: "combine/just/tryscan(_:_:)"
---

# tryScan(_:_:)

## Declaration

```swift
func tryScan<T>(_ initialResult: T, _ nextPartialResult: (T, Output) throws -> T) -> Result<T, any Error>.Publisher
```

## See Also

### Mapping elements

- [map(_:)](combine/just/map(_:).md)
- [tryMap(_:)](combine/just/trymap(_:).md)
- [mapError(_:)](combine/just/maperror(_:).md)
- [scan(_:_:)](combine/just/scan(_:_:).md)
- [setFailureType(to:)](combine/just/setfailuretype(to:).md)