# warn

`import { warn } from "destack:console";`

Write a warning line to stderr.

```ds title="warn"
export function warn(...values: unknown[]): Result<void, HostError>
```

[language/library/src/console/console.ds:117:119](https://github.com/destack-sh/destack/blob/main/language/library/src/console/console.ds#L117-L119)