28 lines
802 B
Markdown
28 lines
802 B
Markdown
---
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title: Quarter of year
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tags: date
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expertise: beginner
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cover: blog_images/fallen-leaves.jpg
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firstSeen: 2020-10-09T10:23:55+03:00
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lastUpdated: 2020-10-22T20:24:04+03:00
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---
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Returns the quarter and year to which the supplied date belongs to.
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- Use `Date.prototype.getMonth()` to get the current month in the range (0, 11), add `1` to map it to the range (1, 12).
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- Use `Math.ceil()` and divide the month by `3` to get the current quarter.
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- Use `Date.prototype.getFullYear()` to get the year from the given `date`.
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- Omit the argument, `date`, to use the current date by default.
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```js
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const quarterOfYear = (date = new Date()) => [
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Math.ceil((date.getMonth() + 1) / 3),
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date.getFullYear()
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];
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```
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```js
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quarterOfYear(new Date('07/10/2018')); // [ 3, 2018 ]
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quarterOfYear(); // [ 4, 2020 ]
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```
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