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javascript/snippets/is-leap-year.md

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+---
+title: Check for leap year
+type: snippet
+tags: [date]
+cover: flowering-hills
+dateModified: 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`.
+
+```js
+const isLeapYear = year => new Date(year, 1, 29).getMonth() === 1;
+```
+
+```js
+isLeapYear(2019); // false
+isLeapYear(2020); // true
+```