# always

`import { always } from "destack:assert";`

Record that `condition` should always hold when reached.

```ds title="always"
export function always(condition: boolean, message: string, details?: Details | undefined): void
```

[language/library/src/assert/assert.ds:100:102](https://github.com/destack-sh/destack/blob/main/language/library/src/assert/assert.ds#L100-L102)