---
title: dividerIndex
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nstrackingseparatortoolbaritem/dividerindex
---

# dividerIndex

The index of the split view divider to align with the tracking separator.

## Declaration

```swift
var dividerIndex: Int { get set }
```

## See Also

### configuring a tracking separator

- [splitView](appkit/nstrackingseparatortoolbaritem/splitview.md)