---
title: line
framework: combine
role: symbol
role_heading: Instance Property
path: combine/publishers/assertnofailure/line
---

# line

The line number used in the error message.

## Declaration

```swift
let line: UInt
```

## See Also

### Inspecting publisher properties

- [upstream](combine/publishers/assertnofailure/upstream.md)
- [file](combine/publishers/assertnofailure/file.md)
- [prefix](combine/publishers/assertnofailure/prefix.md)