Swift version: 5.1
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.
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Available from iOS 2.0
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.