isISOLanguage
A Boolean value that indicates whether this language code is in the list of ISO-defined languages.
Declaration
var isISOLanguage: Bool { get }Discussion
The following code snippet illustrates use of the isISOLanguage value.
let enIsISO = Locale.LanguageCode("en").isISOLanguage // true
let gibberishIsISO = Locale.LanguageCode("gibberish").isISOLanguage // false