s static method

String s(String? key)

Translate the String

Implementation

static String s(String? key) {
  /// While developing, return 'null' when appropriate
  /// Add key words to a file if not yet found there.
  /// assert is removed in production.
  assert(() {
    if (key == null) {
      key = 'null';
    } else {
      // Remove any leading and trailing spaces.
      key = key!.trim();
    }

    if (_I10n.file != null &&
        _useKey &&
        (_allValues == null || _allValues!.isEmpty) &&
        _localizedValues != null &&
        _localizedValues![key] == null) {
      _localizedValues!.addAll({key: key});
      _I10n.add(key);
    }
    return true;
  }());

  /// If not translation, provide the key itself instead.
  return _useKey ? key ?? '' : _localizedValues![key] ?? key ?? '';
}