nextPage property

Implementation

PageRequest? get nextPage {
  var totalPages2 = totalPages;
  if (totalPages2 == null) {
    if (length == perPage) {
      return PageRequest(page: page + 1, perPage: perPage);
    }
    return null;
  }
  return page < totalPages2
      ? PageRequest(page: page + 1, perPage: perPage)
      : null;
}