20 lines
439 B
Markdown
20 lines
439 B
Markdown
---
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title: Check if date is before another date
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tags: date
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expertise: beginner
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firstSeen: 2018-09-29T13:58:38+03:00
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lastUpdated: 2020-10-20T23:02:01+03:00
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---
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Checks if a date is before another date.
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- Use the less than operator (`<`) to check if the first date comes before the second one.
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```js
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const isBeforeDate = (dateA, dateB) => dateA < dateB;
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```
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```js
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isBeforeDate(new Date(2010, 10, 20), new Date(2010, 10, 21)); // true
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```
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