---
url: 'https://adk.nht.io/api/@nhtio/adk/guards/functions/isBaseException.md'
---

# Function: isBaseException()

```ts
function isBaseException(value: unknown): value is BaseException;
```

Defined in: [guards.ts:45](https://github.com/NHTIO/ADK/blob/v1.20260605.0/src/guards.ts#L45)

Returns `true` if `value` is a [@nhtio/adk!BaseException](../../factories/classes/BaseException.md) instance.

## Parameters

| Parameter | Type      |
| --------- | --------- |
| `value`   | `unknown` |

## Returns

`value is BaseException`