has method

@override bool has(String key, { String? locale, String? namespace, })

Checks if a translation key exists.

• key: The translation key.
• locale: Locale to check; uses current if null.
• namespace: Namespace to search in.
• Returns: True if the key exists.

Implementation

@override
bool has(String key, {String? locale, String? namespace}) {
  final loc = locale ?? _currentLocale;
  final ns = namespace ?? '';
  return _getTranslation(key, loc, ns) != null ||
      _getTranslation(key, loc, '') != null ||
      (loc != _fallbackLocale &&
          (_getTranslation(key, _fallbackLocale, ns) != null ||
              _getTranslation(key, _fallbackLocale, '') != null));
}