# underline(_:pattern:color:) Applies an underline to the text in this view. ``` nonisolated func underline(_ isActive: Bool = true, pattern: Text.LineStyle.Pattern = .solid, color: Color? = nil) -> some View ``` ## Parameters `isActive` A Boolean value that indicates whether underline is added. The default value is `true`. `pattern` The pattern of the line. The default value is `solid`. `color` The color of the underline. If `color` is `nil`, the underline uses the default foreground color. ## Return Value A view where text has a line running along its baseline. --- 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)