The list of locale identifiers available on the system.
- iOS 2.0+
- macOS 10.4+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
A locale identifier starts with a language code, often includes a region code, and occasionally includes a script designator. See Locale IDs for more information about the structure of a locale identifier.
localized to obtain a human readable description of any of the locale identifiers in this list.