# json

Overmind wraps objects and arrays in your state structure with proxies. If you pass state to 3rd party libraries, to a service worker or similar, you should pass a long a copy of that state. This avoids the 3rd party tool from mutating your state when you do not want it to.

```typescript
import { json } from 'overmind'

const copy = json(someValue)
```

This function does a copy of any plain object or array, which are the only values that is wrapped with proxies. This ensures minimal work is done and keeps all other values alone.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://overmindjs.org/v24/api-1/json.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.