30-seconds-of-code/javascript/snippets/is-leap-year.md

title, type, tags, cover, dateModified

title	type	tags	cover	dateModified
Check for leap year	snippet	date	flowering-hills	2020-10-20T23:02:01+03:00

Checks if the given year is a leap year.

• Use the Date constructor, setting the date to February 29th of the given year.
• Use Date.prototype.getMonth() to check if the month is equal to 1.

const isLeapYear = year => new Date(year, 1, 29).getMonth() === 1;

isLeapYear(2019); // false
isLeapYear(2020); // true