# RequestDistancesCallback Function

> Callback function for requests expecting a Distances object.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Function
- **Path:** DS Server > Reference > JavaScript API > RequestDistancesCallback Function
- **270 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestdistancescallback/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestdistancescallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/requestdistancescallback/llms-full.txt

---

### Description

Callback function for requests expecting a [Distances](https://docs.textcontrol.com/ds-server/reference/javascript/distances/llms-full.txt) object.

### Syntax

```javascript
function(<Distances> distances)
```

### Examples

The following example demonstrates `RequestDistancesCallback` in a practical document-editing workflow. Callback function for requests expecting a Distances object.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

function requestDistancesCallback(distances) {
    console.log("distances:", distances);
}

function useRequestDistancesCallback(frameBase) {
    frameBase.getTextDistances(requestDistancesCallback, onTxError);
}
```

---

## Nearby

- **Previous:** [RequestDirectionCallback Function](https://docs.textcontrol.com/ds-server/reference/javascript/requestdirectioncallback/llms-full.txt)
- **Next:** [RequestDocumentLinkCallback Function](https://docs.textcontrol.com/ds-server/reference/javascript/requestdocumentlinkcallback/llms-full.txt)