# firstAvailableFrameIndex

> The index of the first frame available in the Profiler Window, or -1 if no frames are available.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public long firstAvailableFrameIndex { get; }
```