---
title: strokeOpacity
framework: mapkitjs
role: symbol
role_heading: Interface Property
path: mapkitjs/styleconstructoroptions/strokeopacity
---

# strokeOpacity

The opacity of the stroke color.

## Declaration

```data
strokeOpacity?: number;
```

## Discussion

Discussion The value of this property can be in the range of 0 (fully transparent) to 1 (fully opaque). The default stroke opacity is 1.

## See Also

### Setting stroke styles

- [strokeColor](mapkitjs/styleconstructoroptions/strokecolor.md)
- [strokeStart](mapkitjs/styleconstructoroptions/strokestart.md)
- [strokeEnd](mapkitjs/styleconstructoroptions/strokeend.md)
- [lineGradient](mapkitjs/styleconstructoroptions/linegradient.md)