is-undefined

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> Check if a value is undefined or not.

:cloud: Installation

``sh


Using npm

npm install --save is-undefined

Using yarn

yarn add is-undefined
`

:clipboard: Example

`js
const isUndefined = require("is-undefined");

console.log(isUndefined(undefined));
// => true

console.log(isUndefined(false));
// => false

console.log(isUndefined(null));
// => false
`




:question: Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. 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. :rocket:

:memo: Documentation




$3

Checks if a value is undefined or not.

#### Params

- Anything input: The input value.

#### Return
- Boolean true, if the input is undefined, false otherwise.




:yum: How to contribute

Have an idea? Found a bug? See [how to contribute][contributing].

:sparkling_heart: Support my projects

I open-source almost everything I can, and I try to reply to everyone needing help using these projects. Obviously,
this takes time. You can integrate and use these projects in your applications for free! You can even change the source code and redistribute (even resell it).

However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:


- Starring and sharing the projects you like :rocket:
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Thanks! :heart:




:dizzy: Where is this library used?

If you are using this library in one of your projects, add it in this list. :sparkles:

- @abdfnx/powershell
- @chalkbox/custom
- @chalkbox/terminal
- @khoulzo/itsm-date-formatter
- array-get-member
- cli-box
- falsejs
- get-key-or-default
- get-member
- is-eq-eight
- is-eq-five
- is-eq-four
- is-eq-nine
- is-eq-one
- is-eq-seven
- is-eq-six
- is-eq-ten
- is-eq-ten-thousand
- is-eq-three
- is-eq-two
- is-eq-zero
- obj-unflatten
- octothorpe-xo
- powershell
- spooky-element
- spooky-router
- spooky-view-manager
- tilda`

:scroll: License

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

[license]: /LICENSE
[website]: https://ionicabizau.net
[contributing]: /CONTRIBUTING.md
[docs]: /DOCUMENTATION.md
[badge_patreon]: https://ionicabizau.github.io/badges/patreon.svg
[badge_amazon]: https://ionicabizau.github.io/badges/amazon.svg
[badge_paypal]: https://ionicabizau.github.io/badges/paypal.svg
[badge_paypal_donate]: https://ionicabizau.github.io/badges/paypal_donate.svg
[patreon]: https://www.patreon.com/ionicabizau
[amazon]: http://amzn.eu/hRo9sIZ
[paypal-donations]: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=RVXDDLKKLQRJW