# StringReplacement

`import { StringReplacement } from "destack:string";`

Replacement value used by `String.replace` and `String.replaceAll`.

```ds title="StringReplacement"
export type StringReplacement = string | ((string, ...(string | undefined)[]) => string)
```

[language/library/src/string/string.ds:22:24](https://github.com/destack-sh/destack/blob/main/language/library/src/string/string.ds#L22-L24)