# Javascript: Collection.elementAt Method

> Returns the element at a specified index in the collection.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 28.0
- **Path:** DS Server > Reference > JavaScript API > Javascript: Collection.elementAt Method
- **407 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/collection/elementat-method/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/collection/elementat-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/collection/elementat-method/llms-full.txt

---

### Description

Returns the element at a specified index in the collection.

### Syntax

```javascript
<void> Collection.elementAt(<number> index, <RequestObjectCallback> callback, [<ErrorCallback> errorCallback])
```

### Parameters

| Parameter | Description |
|---|---|
| index | The zero-based index of the element to retrieve. |
| callback | Receives the element as a parameter. |
| errorCallback | Optional. Is called when the operation failed with an error. |

### Examples

The following example demonstrates `Collection.elementAt` in a practical document-editing workflow. It returns the element at a specified index in the collection.

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

function elementAt(s) {
    s.elementAt(
        0,
        function(obj) {
            if (!obj) {
                console.warn("No object was returned.");
                return;
            }
            
            console.log("element at result:", obj);
        },
        onTxError
    );
}
```

---

## Nearby

- **Previous:** [Collection Object](https://docs.textcontrol.com/ds-server/reference/javascript/collection/llms-full.txt)
- **Next:** [Javascript: Collection.forEach Method](https://docs.textcontrol.com/ds-server/reference/javascript/collection/foreach-method/llms-full.txt)