| Server IP : 198.54.126.161 / Your IP : 216.73.217.37 Web Server : LiteSpeed System : Linux premium12.web-hosting.com 4.18.0-553.94.1.lve.el8.x86_64 #1 SMP Thu Jan 22 12:37:22 UTC 2026 x86_64 User : amerfigf ( 898) PHP Version : 8.2.31 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /proc/self/root/lib/node_modules/npm/node_modules/number-is-nan/ |
Upload File : |
# number-is-nan [](https://travis-ci.org/sindresorhus/number-is-nan)
> ES2015 [`Number.isNaN()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN) [ponyfill](https://ponyfill.com)
## Install
```
$ npm install --save number-is-nan
```
## Usage
```js
var numberIsNan = require('number-is-nan');
numberIsNan(NaN);
//=> true
numberIsNan('unicorn');
//=> false
```
## License
MIT © [Sindre Sorhus](http://sindresorhus.com)