---
url: /process-functions/dimension-exists.md
description: Checks whether a dimension exists.
---

# dimension.exists

Checks whether a dimension exists.

```js
dimension.exists(dimensionName)
```

## Parameters

| Parameter | Type | Description |
|---|---|---|
| `dimensionName` | `string` | The dimension's name. |

## Returns

`true` when the dimension exists, otherwise `false`.

## Examples

```js
if (dimension.exists("Account")) {
    // do something
}
```