# isClassProvider

**Kind:** Function

**Source:** [`packages/core/injector/helpers/provider-classifier.ts`](https://github.com/nestjs/nest/blob/master/packages/core/injector/helpers/provider-classifier.ts#L9)

**Part of:** [Core](subsystem-packages-core)

## Signature

```ts
function isClassProvider(provider: Provider): provider is ClassProvider<T>
```

## Parameters

| Name | Type |
|---|---|
| `provider` | `Provider` |

**Returns:** `provider is ClassProvider<T>`

## Relationships

- IMPORTS → `ClassProvider`
- IMPORTS → `FactoryProvider`
- IMPORTS → `Provider`
- IMPORTS → `ValueProvider`
- IMPORTS → `isUndefined`