lazyMapFirstNotNullOrNull<R> method

Future<R?> lazyMapFirstNotNullOrNull<R>(Future<R?> transform(T))

Implementation

Future<R?> lazyMapFirstNotNullOrNull<R>(
    Future<R?> Function(T) transform) async {
  for (T it in this) {
    R? result = await transform(it);
    if (result != null) {
      return result;
    }
  }
  return null;
}