get arr of dates in isoString for the period between months in a year.

DateArrMaker.js

class DateArrMaker {
  constructor(minMonth, maxMonth, year) {
    if (isNaN(minMonth) || isNaN(maxMonth) || isNaN(year)) {
      throw new Error(`all values must be numeric`);
    }
    // if (maxMonth < minMonth) {
    //   let temp = maxMonth;
    //   minMonth = maxMonth;
    //   maxMonth = temp;
    // }
    if (maxMonth < minMonth) {
      throw new Error(
        `maxMonth:"${maxMonth}" must be equal to or greater than minMonth:"${minMonth}"`,
      );
    }

    this.minMonth = minMonth;
    this.maxMonth = maxMonth + 1;
    this.year = year;
    this.dateArr = [];
    return this.getArr();
  }

  getDaysInMonth(month) {
    return new Date(this.year, month, 0).getDate();
  }

  buildArr() {
    let period = this.maxMonth - this.minMonth;
    let currentIterableMonthNum = this.minMonth;
    for (let i = 0; i < period; i++) {
      let daysInMonth = this.getDaysInMonth(currentIterableMonthNum);
      console.log('DateArrMaker -> buildArr -> daysInMonth', daysInMonth);
      for (let j = 0; j < daysInMonth; j++) {
        let dayInMonth = j + 1;
        console.log(
          'DateArrMaker -> buildArr -> dayInMonth',
          `${this.year}-${currentIterableMonthNum}-${dayInMonth}`,
        );
        let date = new Date(
          `${this.year}-${currentIterableMonthNum}-${dayInMonth}`,
        );
        this.dateArr.push(date);
      }
      currentIterableMonthNum++;
    }
  }

  getArr() {
    this.buildArr();
    return this.dateArr;
  }
}

module.exports = { DateArrMaker };