How to use the rrule.DAILY function in rrule

const computeDaily = ({ interval }) => ({
  freq: RRule.DAILY,
  interval,
});

const dateNumber = moment(date).date();

    const dayToRRule = {
      Monday: 'MO',
      Tuesday: 'TU',
      Wednesday: 'WE',
      Thursday: 'TH',
      Friday: 'FR',
      Saturday: 'SA',
      Sunday: 'SU',
    };

    const rules = {
      daily: {
        name: 'Every Day',
        frequency: RRule.DAILY,
      },
      weekdays: {
        name: 'Every Weekday (Mon-Fri)',
        frequency: RRule.WEEKLY,
        byweekday: ['MO', 'TU', 'WE', 'TH', 'FR'],
      },
      weekends: {
        name: 'Weekends (Sat/Sun)',
        frequency: RRule.WEEKLY,
        byweekday: ['SA', 'SU'],
      },
      weekly: {
        name: `Weekly on ${dateSpelled}`,
        frequency: RRule.WEEKLY,
        byweekday: [dayToRRule[dateSpelled]],
      },

const doesRecurringEventsOverlap = (startingDate, endingDate, recurringRule) => {
    if (!recurringRule || !startingDate || !endingDate ||
        !('frequency' in recurringRule) || !('interval' in recurringRule)) return false;

    const freqMap = {
        YEARLY: RRule.YEARLY,
        MONTHLY: RRule.MONTHLY,
        WEEKLY: RRule.WEEKLY,
        DAILY: RRule.DAILY,
    };

    const dayMap = {
        MO: RRule.MO,
        TU: RRule.TU,
        WE: RRule.WE,
        TH: RRule.TH,
        FR: RRule.FR,
        SA: RRule.SA,
        SU: RRule.SU,
    };

    const rules = {
        freq: freqMap[recurringRule.frequency],
        interval: parseInt(recurringRule.interval, 10) || 1,
        dtstart: startingDate.toDate(),