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# localeIdentifier

The identifier for the locale.

```
var localeIdentifier: String { get }
```

## Discussion

Examples of locale identifiers include `"en_GB"`, `"es_ES_PREEURO"`, and `"zh-Hant_HK_POSIX@collation=pinyin;currency=CNY"`.

Use [`localizedString(forIdentifier:)`](/documentation/Foundation/Locale/localizedString(forIdentifier:)) to obtain a version of the value suitable for display to the user.

> Note:
> The value held in the property may differ from the identifier used to initialize the locale because ``doc://com.apple.foundation/documentation/Foundation/NSLocale`` may canonicalize it during initialization.

This property contains the same value returned by the [`object(forKey:)`](/documentation/Foundation/NSLocale/object(forKey:)) method when passing the [`identifier`](/documentation/Foundation/NSLocale/Key/identifier) key.

## See Also

[`availableLocaleIdentifiers`](/documentation/Foundation/NSLocale/availableLocaleIdentifiers)

The list of locale identifiers available on the system.


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