# number-is-nan [![Build Status](https://travis-ci.org/sindresorhus/number-is-nan.svg?branch=master)](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)
