js获取2个日期内的所有日期

var oStartDate = window.navToZZT_VACTIONHEAD1[i].Begda.slice(0, 4) + '-' + window.navToZZT_VACTIONHEAD1[i].Begda.slice(4, 6) +
            '-' + window.navToZZT_VACTIONHEAD1[i].Begda.slice(6, 8);
          var oEndDate = window.navToZZT_VACTIONHEAD1[i].Endda.slice(0, 4) + '-' + window.navToZZT_VACTIONHEAD1[i].Endda.slice(4, 6) + '-' +
            window.navToZZT_VACTIONHEAD1[i].Endda.slice(6, 8);
          var startTime = new Date(oStartDate);
          var endTime = new Date(oEndDate);
          var oRefDate;
          var sType = "Type08";
          if (startTime != undefined && endTime != undefined) {
            while ((endTime.getTime() - startTime.getTime()) >= 0) {
              var year = startTime.getFullYear();
              var month = (startTime.getMonth() + 1).toString().length == 1 ? "0" + (startTime.getMonth() + 1).toString() : (startTime.getMonth() +
                1).toString();
              var day = startTime.getDate().toString().length == 1 ? "0" + startTime.getDate() : startTime.getDate();
              oRefDate = year + "-" + month + "-" + day;
              startTime.setDate(startTime.getDate() + 1);

              this._calendar.addSpecialDate(new DateTypeRange({
                startDate: new Date(oRefDate),
                type: sType,
                tooltip: "Text "
              }));
            }
          }