# filterLogLevels

**Kind:** Function

**Source:** [`packages/common/services/utils/filter-log-levels.util.ts`](https://github.com/nestjs/nest/blob/master/packages/common/services/utils/filter-log-levels.util.ts#L7)

**Part of:** [Common](subsystem-packages-common)

## Signature

```ts
function filterLogLevels(parseableString): LogLevel[]
```

## Parameters

| Name | Type |
|---|---|
| `parseableString` | `any` |

**Returns:** `LogLevel[]`