27 lines
733 B
Markdown
27 lines
733 B
Markdown
---
|
|
title: Add days to date
|
|
type: snippet
|
|
tags: [date]
|
|
cover: digital-nomad-12
|
|
dateModified: 2020-11-28T19:18:29+02:00
|
|
---
|
|
|
|
Calculates the date of `n` days from the given date, returning its string representation.
|
|
|
|
- Use the `Date` constructor to create a `Date` object from the first argument.
|
|
- Use `Date.prototype.getDate()` and `Date.prototype.setDate()` to add `n` days to the given date.
|
|
- Use `Date.prototype.toISOString()` to return a string in `yyyy-mm-dd` format.
|
|
|
|
```js
|
|
const addDaysToDate = (date, n) => {
|
|
const d = new Date(date);
|
|
d.setDate(d.getDate() + n);
|
|
return d.toISOString().split('T')[0];
|
|
};
|
|
```
|
|
|
|
```js
|
|
addDaysToDate('2020-10-15', 10); // '2020-10-25'
|
|
addDaysToDate('2020-10-15', -10); // '2020-10-05'
|
|
```
|