# JsonReviver

`import { JsonReviver } from "destack:json";`

Function that transforms parsed JSON values.

```ds title="JsonReviver"
export type JsonReviver = (string, Json, JsonParseContext | undefined?) => Json | undefined
```

[language/library/src/json/json.ds:13:17](https://github.com/destack-sh/destack/blob/main/language/library/src/json/json.ds#L13-L17)