---
title: identifier
framework: corefoundation
role: symbol
role_heading: Type Property
path: corefoundation/cflocalekey/identifier
---

# identifier

Specifies locale identifier.

## Declaration

```swift
static let identifier: CFLocaleKey!
```

## Discussion

Discussion The corresponding value is a CFString containing the POSIX locale identifier as used by ICU, such as “ja_JP”. If you have a variant locale or a different currency or calendar, it can be as complex as “en_US_POSIX@calendar=japanese;currency=EUR” or “az_Cyrl_AZ@calendar=buddhist;currency=JPY”.

## See Also

### Constants

- [languageCode](corefoundation/cflocalekey/languagecode.md)
- [countryCode](corefoundation/cflocalekey/countrycode.md)
- [scriptCode](corefoundation/cflocalekey/scriptcode.md)
- [variantCode](corefoundation/cflocalekey/variantcode.md)
- [exemplarCharacterSet](corefoundation/cflocalekey/exemplarcharacterset.md)
- [calendarIdentifier](corefoundation/cflocalekey/calendaridentifier.md)
- [calendar](corefoundation/cflocalekey/calendar.md)
- [collationIdentifier](corefoundation/cflocalekey/collationidentifier.md)
- [usesMetricSystem](corefoundation/cflocalekey/usesmetricsystem.md)
- [measurementSystem](corefoundation/cflocalekey/measurementsystem.md)
- [decimalSeparator](corefoundation/cflocalekey/decimalseparator.md)
- [groupingSeparator](corefoundation/cflocalekey/groupingseparator.md)
- [currencySymbol](corefoundation/cflocalekey/currencysymbol.md)
- [currencyCode](corefoundation/cflocalekey/currencycode.md)
- [collatorIdentifier](corefoundation/cflocalekey/collatoridentifier.md)