# ModifierBase A type to use as a base for modifier completions. ``` associatedtype ModifierBase = Any ``` ## Discussion To verify that the completion for a modifier compiles, you specify modifiers as they apply to some base type. Since most modifiers can modify any SwiftUI view, you typically specify any concrete implementation of the protocol for `ModifierBase`. However, some modifiers apply to more specific types, like or , or to an entirely different type like . --- 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)