Function queueHistoryAction

packages/history/src/index.ts:371–396

(
    type: 'push' | 'replace',
    destHref: string,
    state: any,
  )

  // This function queues up a call to update the browser history
  const queueHistoryAction = (
    type: 'push' | 'replace',
    destHref: string,
    state: any,
  ) => {
    const href = createHref(destHref)

    if (!scheduled) {
      rollbackLocation = currentLocation
    }

    // Update the location in memory
    currentLocation = parseHref(destHref, state)

    // Keep track of the next location we need to flush to the URL
    next = {
      href,
      state,
      isPush: next?.isPush || type === 'push',
    }

    if (!scheduled) {
      // Schedule an update to the browser history
      scheduled = Promise.resolve().then(() => flush())
    }
  }

  // NOTE: this function can probably be removed
  const onPushPop = (type: 'PUSH' | 'REPLACE') => {