---
title: typeIdentifier
framework: uikit
role: symbol
role_heading: Type Property
path: uikit/uifontdescriptor/featurekey/typeidentifier
---

# typeIdentifier

A key for identifying the font feature selector.

## Declaration

```swift
static let typeIdentifier: UIFontDescriptor.FeatureKey
```

## Discussion

Discussion The value of this key is an NSNumber object specifying the ligature, character shape, or other font feature.

## See Also

### Deprecated

- [featureIdentifier](uikit/uifontdescriptor/featurekey/featureidentifier.md)