# WriteArray<T>(BinaryWriter, NativeArray<T>)

> Writes data from a native array.

## Definition

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

```csharp
public static void WriteArray<T>(this BinaryWriter writer, NativeArray<T> data) where T : struct
```

### Parameters

**** (\[BinaryWriter]\(/engine/7000.0/script-reference/unity/entities/serialization/binarywriter)): The BinaryReader to write to.**** (\[NativeArray\<T>]\(/engine/7000.0/script-reference/unity/collections/nativearray1)): The data to write.