getOne method

Future<T?> getOne(
  1. bool test(
    1. T value
    ), {
  2. int? parentId,
})

Get One Box<T?>

Implementation

Future<T?> getOne(bool Function(T value) test, {int? parentId}) async {
  for (var item in await getAll(parentId: parentId)) {
    if (test(item)) return item;
  }
  return null;
}