is-undefined

Check if a value is undefined or not.

☁️ Installation

# Using npm
npm install --save is-undefined

# Using yarn
yarn add is-undefined

📋 Example

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

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

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

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

❓ 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. 🐛
3. For direct and quick help, you can use Codementor. 🚀

📝 Documentation

isUndefined(input)

Checks if a value is undefined or not.

Params

• Anything input: The input value.

Return

• Boolean true, if the input is undefined, false otherwise.

😋 How to contribute

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

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💫 Where is this library used?

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

• @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

📜 License

MIT © Ionică Bizău