is-undefined v1.0.11
is-undefined
Check if a value is undefined or not.
:cloud: Installation
# Using npm
npm install --save is-undefined
# Using yarn
yarn add is-undefined
:clipboard: Example
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:
- Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
- For bug reports and feature requests, open issues. :bug:
- For direct and quick help, you can use Codementor. :rocket:
:memo: Documentation
isUndefined(input)
Checks if a value is undefined or not.
Params
- Anything
input
: The input value.
Return
- Boolean
true
, if the input isundefined
,false
otherwise.
:yum: How to contribute
Have an idea? Found a bug? See how to contribute.
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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:
tilda
cli-box
powershell
spooky-element
obj-unflatten
spooky-view-manager
is-eq-four
is-eq-six
is-eq-five
is-eq-three
is-eq-two
is-eq-one
is-eq-zero
is-eq-seven
is-eq-eight
@khoulzo/itsm-date-formatter
spooky-router
octothorpe-xo
get-key-or-default
is-eq-ten
is-eq-nine