27 lines
695 B
Markdown
27 lines
695 B
Markdown
---
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title: Date of yesterday
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tags: date
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expertise: intermediate
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cover: blog_images/travel-mug-2.jpg
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firstSeen: 2019-07-19T10:57:21+03:00
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lastUpdated: 2020-10-22T20:24:44+03:00
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---
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Results in a string representation of yesterday's date.
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- Use the `Date` constructor to get the current date.
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- Decrement it by one using `Date.prototype.getDate()` and set the value to the result using `Date.prototype.setDate()`.
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- Use `Date.prototype.toISOString()` to return a string in `yyyy-mm-dd` format.
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```js
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const yesterday = () => {
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let d = new Date();
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d.setDate(d.getDate() - 1);
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return d.toISOString().split('T')[0];
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};
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```
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```js
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yesterday(); // 2018-10-17 (if current date is 2018-10-18)
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```
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