Given a year, report if it is a leap year.

The tricky thing here is that a leap year in the Gregorian calendar occurs:

on every year that is evenly divisible by 4 except every year that is evenly divisible by 100 unless the year is also evenly divisible by 400

For example, 1997 is not a leap year, but 1996 is. 1900 is not a leap year, but 2000 is.

Notes Though our exercise adopts some very simple rules, there is more to learn!

• isLeap(2022) should return false.
• isLeap(2020) should return true.

const isLeap = (year) => {
	// code here

	return
}