# HasBuffer

> Reports whether the specified Entity instance still refers to a valid entity and that it has a buffer component of type T.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

## HasBuffer(Entity)

Reports whether the specified [Entity](/engine/7000.0/script-reference/unity/entities/entity.md) instance still refers to a valid entity and that it has a buffer component of type T.

```csharp
public bool HasBuffer(Entity entity)
```

### Parameters

**** (\[Entity]\(/engine/7000.0/script-reference/unity/entities/entity)): The entity.

### Returns

| Type                                                          | Description                                                                                                                                                           |
| ------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if the entity has a buffer component of type T, and false if it does not. Also returns false if the Entity instance refers to an entity that has been destroyed. |

## HasBuffer(Entity, bool)

Reports whether the specified [Entity](/engine/7000.0/script-reference/unity/entities/entity.md) instance still refers to a valid entity and that it has a buffer component of type T.

```csharp
public bool HasBuffer(Entity entity, out bool entityExists)
```

### Parameters

**** (\[Entity]\(/engine/7000.0/script-reference/unity/entities/entity)): The entity.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Denotes whether the given entity exists. Use to distinguish entity non-existence from buffer non-existence.

### Returns

| Type                                                          | Description                                                                                                                                                           |
| ------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if the entity has a buffer component of type T, and false if it does not. Also returns false if the Entity instance refers to an entity that has been destroyed. |