---
title: url
framework: mapkitjs
role: symbol
role_heading: Interface Property
path: mapkitjs/imageannotationconstructoroptions/url
---

# url

An object that contains URLs for the image assets in multiple resolutions.

## Declaration

```data
url?: ImageDelegate | ImageHashObject | ImageSource | Promise<ImageSource>;
```

## Discussion

Discussion This property is an object literal containing absolute or relative URLs to standard, 2×, and 3× Retina assets. MapKit JS requires at least one image URL. {     url: {         1: "example.png",         2: "example_2x.png",         3: "example_3x.png"     } } If you choose not to provide standard and Retina resolution assets, you have two options: Set “1” to a URL to a standard resolution image. This results in blurry images on Retina displays. Set “1” to a URL to a Retina image. Set the size to the desired size. This results in crisp images on Retina displays and good images on standard displays, but it’s less optimal than custom, pixel-fitted images.

## See Also

### Initializing the image

- [image](mapkitjs/imageannotationconstructoroptions/image.md)