dayOfProgrammer.js

function dayOfProgrammer(year) {
  let is29 = year % 4 === 0;
  let maxDate = 256;
  let endDay = 0;
  let ninethDay = 0;
  let month = 9;
  let currentYear = 2016;
  let copyYear = year;

  if (year >= 2016) {
    debugger;
    for (let i = 0; i < 2016; i++) {
      debugger;
      if (year === 2016) {
        debugger;
        endDay = 244;
        ninethDay = maxDate - endDay;
        return `${ninethDay}.0${month}.${copyYear}`;
      } else if (year < 2016) {
        endDay = 243;
        ninethDay = maxDate - endDay;
        return `${ninethDay}.0${month}.${copyYear}`;
      }
      year -= 4;
    }
  } else {
    debugger;
    for (let i = 0; i < 2016; i++) {
      debugger;
      if (year === 2016) {
        debugger;
        endDay = 244;
        ninethDay = maxDate - endDay;
        return `${ninethDay}.0${month}.${copyYear}`;
      } else if (year > 2016) {
        endDay = 243;
        ninethDay = maxDate - endDay;
        return `${ninethDay}.0${month}.${copyYear}`;
      }
      year += 4;
    }
  }
}

dayOfProgrammer(2100)