30-seconds-of-code/snippets/isLeapYear.md

title, tags, firstSeen, lastUpdated

title	tags	firstSeen	lastUpdated
isLeapYear	date,beginner	2020-02-05T14:00:03+02:00	2020-10-20T23:02:01+03:00

Checks if the given year is a leap year.

• Use new Date(), 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