vue页面缓存之后，再回到之前页面，时间组件报错

Question

设置缓存handleShow (card) {        if (!this.form.activityEndTime) {          this.$message.error("请先选择活动结束时间");          return ;        } else if (this.selectTicket.length < 10){          this.$refs.dialog.show(null, this.form.activityEndTime);        } else {          this.$message.error("最多只能添加10张优惠券");        }        localStorage.setItem("activitySaved",JSON.stringify(this.form));        let test = JSON.parse(localStorage.activitySaved);        console.log(test);      },通过特定页面进入读取缓存 beforeRouteEnter (from, to, next) {      next(vm => {        if (to.path.includes('/MarketingManage/Coupon/AddCoupon')) {          if (localStorage.getItem('activitySaved')){            vm.form = JSON.parse(localStorage.activitySaved);            console.log(2,vm.form.activityStartTime);          }        }      });    },读取之后return {      startPickerOptions: {        disabledDate (currentDate) {          console.log(2,_this.form.activityStartTime);          return _this.$moment().startOf('days').valueOf() > currentDate.getTime()            || (_this.form.activityEndTime && currentDate.getTime() > _this.form.activityEndTime.getTime());        }      },      endPickerOptions: {        disabledDate (currentDate) {          return (_this.$moment().startOf('days').valueOf() + 86400000) > currentDate.getTime()            || currentDate.getTime() <= _this.form.activityStartTime.getTime() - 86400000;        }      },      startTime: minutes >= 30 ? _this.$moment().add(1, 'hours').format('HH:00') : _this.$moment().format('HH:30'),      endTime: '00:00',      commitStatus: true    };  },

Answer 1

因为你从localstorage里取出来的activityStartTime只是个字符串，不是个Date对象了