# currency(code:) Returns a format style to use floating-point currency notation. ``` static func currency(code: String) -> Self where Self == FloatingPointFormatStyle.Currency, Value : BinaryFloatingPoint ``` ## Parameters `code` The currency code to use, such as `EUR` or `JPY`. See ISO-4217 for a list of valid codes. ## Return Value A floating-point format style that uses the specified currency code. ## Discussion Use the dot-notation form of this method 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 . The following example creates an array of doubles, then uses and the currency style provided by this method to format the doubles as US dollars: ```swift let nums: [Double] = [100.01, 1000.02, 10000.03, 100000.04, 1000000.05] let currencyNums = nums.map { $0.formatted( .currency(code:"USD")) } // ["$100.01", "$1,000.02", "$10,000.03", "$100,000.04", "$1,000,000.05"] ``` --- 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)