# CombineFNV1A64(ulong, ulong)

> Combines a FNV1A64 hash with a value.

## Definition

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

```csharp
public static ulong CombineFNV1A64(ulong hash, ulong value)
```

### Parameters

**** (\[ulong]\(https\://learn.microsoft.com/dotnet/api/system.uint64)): Input Hash.**** (\[ulong]\(https\://learn.microsoft.com/dotnet/api/system.uint64)): Value to add to the hash.

### Returns

| Type                                                          | Description              |
| ------------------------------------------------------------- | ------------------------ |
| [ulong](https://learn.microsoft.com/dotnet/api/system.uint64) | A combined FNV1A64 hash. |