How to get dates with an interval of a month from a given one?

Question

JavaScript

There are two parameters: the date of reference (04/08/2022) and the number of months / repetitions of the cycle (120). You need to get the corresponding array of dates.

let countMonth = 120,
currDate = '08.04.2022',
str;

for (var i = 1; i <= countMonth; i++) {
 str += currDate; // вот тут и проблема как получить +1 месяц каждый цикл, при кратности 12 ( if (i % 12 == 0) ) +1 год и месяц снова на 1 поставить и так 120 раз...
}

Answer 1

function getDates(startStr, count) {
  const dates = [];
  const date = new Date(startStr.split('.').reverse().join('-'));
  const day = date.getDate();
  date.setDate(0);

  for (let i = 0; i < count; i++) {
    date.setMonth(date.getMonth() + 2, 0);
    date.setDate(Math.min(date.getDate(), day));

    dates.push(date.toLocaleDateString('ru-RU', {
      year: 'numeric',
      month: '2-digit',
      day: '2-digit',
    }));
  }

  return dates;
}