# set(_:) Adds a new component to the set, or overrides an existing one. ``` @MainActor @preconcurrency func set(_ component: T) where T : Component ``` ## Parameters `component` The component to add. --- 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)