# Step 10: auto refresh

> [How does `setInterval` work?](https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval)

Since we want our timeline to be refreshed automatically, we'll use a native javascript function: `setInterval` that will handle this task. We pass the name of the function we want to be called (in our case `refreshMessages`) and the delay between each call expressed in milliseconds.

```javascript
setInterval(refreshMessages, 5000);
```


---

# 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://bootcamp.shetechitaly.org/day2/02-10.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.