# modifier(_:) Applies a modifier to a view and returns a new view. ``` nonisolated func modifier(_ modifier: T) -> ModifiedContent ``` ## Parameters `modifier` The modifier to apply to this view. ## Discussion Use this modifier to combine a [`View`](/documentation/SwiftUI/View) and a [`ViewModifier`](/documentation/SwiftUI/ViewModifier), to create a new view. For example, if you create a view modifier for a new kind of caption with blue text surrounded by a rounded rectangle: ``` struct BorderedCaption: ViewModifier { func body(content: Content) -> some View { content .font(.caption2) .padding(10) .overlay( RoundedRectangle(cornerRadius: 15) .stroke(lineWidth: 1) ) .foregroundColor(Color.blue) } } ``` You can use [`modifier(_:)`](/documentation/SwiftUI/View/modifier(_:)) to extend [`View`](/documentation/SwiftUI/View) to create new modifier for applying the `BorderedCaption` defined above: ``` extension View { func borderedCaption() -> some View { modifier(BorderedCaption()) } } ``` Then you can apply the bordered caption to any view: ``` Image(systemName: "bus") .resizable() .frame(width:50, height:50) Text("Downtown Bus") .borderedCaption() ```  --- 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)