firstOrDefault method

T? firstOrDefault([ bool test(T element)? ])

Implementation

T? firstOrDefault([bool Function(T element)? test]) {
  if (test != null) {
    try {
      return firstWhere(test);
    } catch (e) {
      return null;
    }
  } else {
    try {
      return firstWhere((T element) => true);
    } catch (e) {
      return null;
    }
  }
}