---
title: strokeStart
framework: mapkitjs
role: symbol
role_heading: Interface Property
path: mapkitjs/styleconstructoroptions/strokestart
---

# strokeStart

The unit distance along the line where a stroke begins.

## Declaration

```data
strokeStart?: number;
```

## Discussion

Discussion The value of this property must be a number between 0 and 1. A value of 0, the default, represents the beginning of the polyline, and a value of 1 represents the end. MapKit JS interprets values between 0 and 1 linearly along the length of the polyline. The stroke is only visible for the overlay when strokeStart is less than strokeEnd.

## See Also

### Setting stroke styles

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