# XrAnchorPersistCallback

Type alias · category: Other

Source: https://github.com/playcanvas/engine/blob/970d89f6d3bc6667f4e1f88153abd6e7e82ed52c/src/framework/xr/xr-anchor.js#L10

Callback used by [XrAnchor#persist](https://api.playcanvas.com/engine/classes/XrAnchor.md#persist).

```ts
type XrAnchorPersistCallback = (err: Error | null, uuid: string | null) => void
```