18 lines
409 B
Markdown
18 lines
409 B
Markdown
---
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title: isLeapYear
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tags: date,beginner
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---
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Returns `true` if the given `year` is a leap year, `false` otherwise.
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- Use `new Date()`, setting the date to February 29th of the given `year` and use `Date.prototype.getMonth()` to check if the month is equal to `1`.
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```js
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const isLeapYear = year => new Date(year, 1, 29).getMonth() === 1;
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```
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```js
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isLeapYear(2019); // false
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isLeapYear(2020); // true
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```
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