padstart typescript 패딩

 for (const dayOfWeek of Object.values(DayOfWeek)) {
        for (let hour = 0; hour < 24; hour += 2) {
          const startedAt = `${hour.toString().padStart(2, '0')}:00`;
          const endedAt = `${(hour + 1).toString().padStart(2, '0')}:00`;

          await tx.ptScheduleDefaultSetting.create({
            data: {
              dayOfWeek,
              startedAt,
              endedAt,
              isAvailable: true,
              trainerProfileId,
            },
          });
        }
      }
    });