# number A style for formatting the Swift standard double-precision floating-point type. ``` static var number: FloatingPointFormatStyle { get } ``` ## Discussion Use this type property when the call point allows the use of [`FloatingPointFormatStyle`](/documentation/Foundation/FloatingPointFormatStyle). You typically do this when calling the `formatted` methods of types that conform to . --- 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)