add-subtract-date/README.md

Add or subtract a specified time in a date object.

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# add-subtract-date

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> Add or subtract a specified time in a date object.

















## :cloud: Installation

```sh
# Using npm
npm install --save add-subtract-date

# Using yarn
yarn add add-subtract-date
```













## :clipboard: Example



```js
const addSubtractDate = require("add-subtract-date");

var d = new Date(1989, 11, 20);

console.log(addSubtractDate.add(d, 2, "days"));
// => Fri Dec 22 1989 00:00:00 GMT+0200 (EET)

console.log(addSubtractDate.subtract(d, 1, "day"));
// => Thu Dec 21 1989 00:00:00 GMT+0200 (EET)

console.log(addSubtractDate.subtract(d, 1, "year"));
// => Wed Dec 21 1988 00:00:00 GMT+0200 (EET)

console.log(addSubtractDate.add(d, 10, "hours"));
// => Wed Dec 21 1988 10:00:00 GMT+0200 (EET)

console.log(addSubtractDate.add(d, 42, "minutes"));
// => Wed Dec 21 1988 10:42:00 GMT+0200 (EET)

console.log(addSubtractDate.add(d, 7, "seconds"));
// => Wed Dec 21 1988 10:42:07 GMT+0200 (EET)

console.log(addSubtractDate.add(d, 142, "milliseconds"));
// => Wed Dec 21 1988 10:42:07 GMT+0200 (EET)

console.log(addSubtractDate.subtract(d, 1, "week"));
// => Wed Dec 28 1988 10:42:07 GMT+0200 (EET)
```












## :question: Get Help

There are few ways to get help:



 1. Please [post questions on Stack Overflow](https://stackoverflow.com/questions/ask). You can open issues with questions, as long you add a link to your Stack Overflow question.
 2. For bug reports and feature requests, open issues. :bug:
 3. For direct and quick help, you can [use Codementor](https://www.codementor.io/johnnyb). :rocket:







## :memo: Documentation


### `gen()`




The module exports an object containing two methods: `add`

(goes in the future) and `subtract` (goes in the past).

They require the following arguments:


 - `d` (Date): The date object.
 - `count` (Number): How many years/months/etc to add/subtract.
 - `what` (String): What to add/subtract. Supported values are:

     - `years`
     - `year`
     - `months`
     - `month`
     - `weeks`
     - `week`
     - `days`
     - `day`
     - `hours`
     - `hour`
     - `minutes`
     - `minute`
     - `seconds`
     - `second`
     - `milliseconds`
     - `millisecond`














## :yum: How to contribute
Have an idea? Found a bug? See [how to contribute][contributing].


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## :dizzy: Where is this library used?
If you are using this library in one of your projects, add it in this list. :sparkles:

 - `@iannjuguna/tumanaapi`
 - `@xwl7001/react-github-calendar`
 - `amusementclub2.0`
 - `daty`
 - `discord-paginator`
 - `github-calendar`
 - `react-github-calendar-x`











## :scroll: License

[MIT][license] © [Ionică Bizău][website]






[license]: /LICENSE
[website]: https://ionicabizau.net
[contributing]: /CONTRIBUTING.md
[docs]: /DOCUMENTATION.md
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