https://github.com/sindresorhus/number-is-nan

ES2015 Number.isNaN() ponyfill
https://github.com/sindresorhus/number-is-nan

Last synced: about 1 month ago
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ES2015 Number.isNaN() ponyfill

• Host: GitHub
• URL: https://github.com/sindresorhus/number-is-nan
• Owner: sindresorhus
• License: mit
• Archived: true
• Created: 2015-05-20T20:43:39.000Z (about 9 years ago)
• Default Branch: main
• Last Pushed: 2024-05-02T17:43:43.000Z (2 months ago)
• Last Synced: 2024-05-19T14:01:19.793Z (about 1 month ago)
• Language: JavaScript
• Homepage:
• Size: 9.77 KB
• Stars: 28
• Watchers: 7
• Forks: 8
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license
  • Security: .github/security.md

Lists

• awesome-ponyfills - number-is-nan - [`Number.isNaN`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN) (Numbers)

README

        
Deprecated as this is now natively available in all modern browsers and Node.js versions.

---

# 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 number-is-nan

```

## Usage

```js

const numberIsNan = require('number-is-nan');

numberIsNan(NaN);

//=> true

numberIsNan('unicorn');

//=> false

```

---



	

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