odin-default-js-exercises/06_leapYears/leapYears.js

const leapYears = function (year) {
  if (year % 4 === 0 || year % 400 === 0) {
    if (year % 100 === 0 && year % 400 !== 0) {
      return false;
    }
    return true;
  } else {
    return false;
  }
};

// Do not edit below this line
module.exports = leapYears;