Async & Promise

What is Promise?

The Promise object represents the eventual completion (or failure) of an asynchronous operation and its resulting value.

  • 訂餐
  • 完成訂餐
  • 餐點製作中
  • 外送員取得餐點
  • 運送中
  • 到達目的地
  • 客戶取得餐點