---
title: identifier
framework: photosui
role: symbol
role_heading: Instance Property
path: photosui/phprojectregionofinterest/identifier-swift.property
---

# identifier

The region’s unique identifier.

## Declaration

```swift
var identifier: PHProjectRegionOfInterest.Identifier { get }
```

## See Also

### Determining Region Properties

- [rect](photosui/phprojectregionofinterest/rect.md)
- [weight](photosui/phprojectregionofinterest/weight.md)
- [quality](photosui/phprojectregionofinterest/quality.md)