Answers for "leap year formula"

calculate if year is leap year

if (i%4==0 && i%100!=0 || i%400==0) {
months[2] = 29;
}
else {
month[2] = 28;
}

leap year

import calendar

def is_leap(year):
    return calendar.isleap(year)

leap year

const leapYear = (year) => {
	if (year % 4 === 0 || year % 400 === 0 && year % 100 !== 0) {
		return `${year } : is a leap year`
	} else {
		return `${year} : is not a leap year`
	}
}