vue renderTracked和renderTriggered有什么使用场景和用法？-灵析社区

vue renderTracked和renderTriggered有什么使用场景和用法？ [https://cn.vuejs.org/api/options-lifecycle.html#rendertracked](https://link.segmentfault.com/?enc=eJlbYRECV7%2FsLWCalRlkJw%3D%3D.VPnvg7Px4n5NxwF8SoyP7G5oaNNcLuF4zUGSdr5LhWtH8yW20IUXrQLSe9xMjJK3DDgN%2Fxlf0PEeaoDt7iRJVg%3D%3D) 具体来说，比如： type DebuggerEvent = { effect: ReactiveEffect target: object type: TrackOpTypes /_'get' | 'has' | 'iterate'_ / key: any } type DebuggerEvent = { effect: ReactiveEffect target: object type: TriggerOpTypes /_'set' | 'add' | 'delete' | 'clear'_ / key: any newValue?: any oldValue?: any oldTarget?: Map | Set } get has iterate set add delete clear分别是什么意思 oldTarget是什么意思