How to spell out numbers using NumberFormatter's spellOut style
Swift version: 5.6
iOS makes it easy to convert numbers like 10 or 100 into their written equivalents: "ten" and "one hundred", and it even handles other languages. For example, to convert the number 556 into "five hundred fifty-six", you would use this code:
let formatter = NumberFormatter()
formatter.numberStyle = .spellOut
let english = formatter.string(from: 556)If you wanted to get that in Spanish, you would set a locale like this:
formatter.locale = Locale(identifier: "es_ES")
let spanish = formatter.string(from: 556)Running that code would make the english constant equal to five hundred fifty-six and the spanish constant equal to quinientos cincuenta y seis.
BUILD THE ULTIMATE PORTFOLIO APP Most Swift tutorials help you solve one specific problem, but in my Ultimate Portfolio App series I show you how to get all the best practices into a single app: architecture, testing, performance, accessibility, localization, project organization, and so much more, all while building a SwiftUI app that works on iOS, macOS and watchOS.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 2.0
Similar solutions…
- How to format dates with an ordinal suffix using NumberFormatter's ordinalStyle
- How to style text views with fonts, colors, line spacing, and more
- How to style the font in a UINavigationBar's title
- How to make a UIView fade out
- How to get bordered buttons that stand out
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
