hasPreviousPage method

bool hasPreviousPage(
  1. InfiniteData<TPage, TPageParam>? data
)

Whether data provides another backward page parameter.

Implementation

bool hasPreviousPage(InfiniteData<TPage, TPageParam>? data) =>
    data != null &&
    data.pages.isNotEmpty &&
    getPreviousPageParam?.call(
          data.pages.first,
          data.pages,
          data.pageParams.first,
          data.pageParams,
        ) !=
        null;