Functions that return a week from a given date

index.ts

const getDaysOfWeekFromGivenDate = (
  date: Date | null
) => {
  if (date) {
    const startOfWeek = moment(date).startOf('isoWeek');
    const weekArray = moment.weekdays();
    const daysOfWeekInSelectedDate = generateWeek(
      startOfWeek,
      weekArray
    );
    return daysOfWeekInSelectedDate;
  } else {
    return [];
  }
};

const generateWeek = (
  startOfWeek: moment.Moment,
  daysOfWeek: Array<string>
): Array<Date> => {
  if (startOfWeek && daysOfWeek.length) {
    return daysOfWeek.map((d, i) => {
      return startOfWeek
        .clone()
        .add(i, 'd')
        .toDate();
    });
  }
  return [];
};