# subscript(_:) Gets or sets the component of the specified type. ``` @abi(@MainActor @preconcurrency subscript(optimized componentType: T.Type) -> T? where T : Component { get set }) @MainActor @preconcurrency subscript(componentType: T.Type) -> T? where T : Component { get set } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)