> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# dataLength

```ts theme={null}
function dataLength(data): number
```

Returns the length of `data`, in bytes.

## Parameters

| Parameter | Type                                               | Description                    |
| :-------- | :------------------------------------------------- | :----------------------------- |
| `data`    | [`BytesLike`](/sdk/content/type-aliases/BytesLike) | The data to get the length of. |

## Returns

`number`

The length of the data.

## Source

[utils/data.ts:163](https://github.com/dominant-strategies/quais.js/blob/c1c12d43f9d34c6baad2b0542bd6d0acd6fefcbf/src/utils/data.ts#L163)