odin-js-fundamentals-part-4/06_leapYears/leapYears.js

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

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