---
title: "subscript(_:)"
framework: uikit
role: symbol
role_heading: Instance Subscript
path: "uikit/uitraitcollection/subscript(_:)-6jr9c"
---

# subscript(_:)

## Declaration

```swift
subscript<T>(trait: T.Type) -> T.Value where T : _UICustomRawRepresentableTraitDefinition, T._CustomRawValue == Int { get }
```