PrevPageParamBuilder<TData, TPageParam> typedef

PrevPageParamBuilder<TData, TPageParam> = TPageParam? Function(InfiniteData<TData, TPageParam> data)

Signature for the function that determines the previous page parameter.

Receives the current data containing all fetched pages and their parameters. Returns the parameter for the previous page, or null if there are no more pages.

Implementation

typedef PrevPageParamBuilder<TData, TPageParam> = TPageParam? Function(
  InfiniteData<TData, TPageParam> data,
);