Function countItems

countItems<TItem = any>(
    items: List<TItem>,
    payload: QueryItemsPayload<TItem>,
    options?: InMemoryQueryItemsReaderOptions<TItem>,
): number
Counts the items of a list matching a payload, ignoring its sorts and pagination: the total count reader of the PaginationExtension, so the count agrees with the pages of queryItems. With payload.distinct the duplicates, found on payload.projections when given, are not counted.
Type Parameters
- TItem = any
Parameters
- items: List<TItem>
  Items to count.
- payload: QueryItemsPayload<TItem>
  Query whose filters, projections and distinct are applied.
- Optionaloptions: InMemoryQueryItemsReaderOptions<TItem>
  Comparison options, see InMemoryQueryItemsReaderOptions.
Returns number
the number of matching items, the length of the list without filters.
- Defined in src/query-items/in-memory/utils.ts:55