我有現(xiàn)成的常量需要保存在狀態(tài)中： const day = "25/02/2020"; const timeStart = "08:00"; const timeEnd = "00:00";在我的 vuex 文件中我有這個(gè)：  export default new Vuex.Store ({    state: {       dateSelected: [], // selected date    },    mutations: {      saveDateSelected (state, [newDateSelected, newTimeStart, newTimeEnd]) {         const newobject = {            DateStart: newDateSelected + "-" + newTimeStart,            DateEnd: newDateSelected + "-" + newTimeEnd,         };         state.dateSelected.push (newobject);      }    },當(dāng)我在我的組件中時(shí)，我會(huì)通過(guò)以下方式調(diào)用數(shù)據(jù)：    this.saveDateSelected (day, timeStart, timeEnd);如果我執(zhí)行“console.log (this.dateSelected);” 給我結(jié)果：   DateEnd: "2 - /"   DateStart: "2 - 5"什么時(shí)候應(yīng)該給我：  DateEnd: "25/02/2020 - 00:00"  DateStart: "25/02/2020 - 08:00"