# Locale.fromSubtags constructor

const Locale.fromSubtags({String languageCode: 'und', String scriptCode, String countryCode })

Creates a new Locale object.

The keyword arguments specify the subtags of the Locale.

The subtag values are case sensitive and must be valid subtags according to CLDR supplemental data: language, script and region for each of languageCode, scriptCode and countryCode respectively.

The `countryCode` subtag is optional. When there is no country subtag, the parameter should be omitted or passed `null` instead of an empty-string.

Validity is not checked by default, but some methods may throw away invalid data.

## Implementation

    const Locale.fromSubtags({
      String languageCode = 'und',
      this.scriptCode,
      String countryCode,
    }) : assert(languageCode != null),
         assert(languageCode != ''),
         _languageCode = languageCode,
         assert(scriptCode != ''),
         assert(countryCode != ''),
         _countryCode = countryCode;