Function count

packages/platform/browser/src/IndexedDbQueryBuilder.ts:1359–1372

(
    this: IndexedDbQuery.From<any>,
    index?: Index
  )

    return select
  },
  count<Index extends IndexedDbDatabase.IndexFromTable<any>>(
    this: IndexedDbQuery.From<any>,
    index?: Index
  ) {
    let count = this.countCache.get(index)
    if (count === undefined) {
      count = makeCount({
        from: this,
        index
      })
      this.countCache.set(index, count)
    }
    return count
  },
  delete<Index extends IndexedDbDatabase.IndexFromTable<any>>(
    this: IndexedDbQuery.From<any>,
    index?: Index