Function schedule

packages/query-core/src/notifyManager.ts:28–36

(callback: NotifyCallback)

  let scheduleFn = defaultScheduler

  const schedule = (callback: NotifyCallback): void => {
    if (transactions) {
      queue.push(callback)
    } else {
      scheduleFn(() => {
        notifyFn(callback)
      })
    }
  }
  const flush = (): void => {
    const originalQueue = queue
    queue = []