---
title: leading
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsslider/tickmarkposition-swift.enum/leading
---

# leading

A constant indicating that tick marks are displayed on the leading side of the slider.

## Declaration

```swift
static var leading: NSSlider.TickMarkPosition { get }
```

## See Also

### Configuring Vertical Sliders

- [trailing](appkit/nsslider/tickmarkposition-swift.enum/trailing.md)