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- # is-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
- [travis-image]: https://img.shields.io/travis/feross/is-buffer/master.svg
- [travis-url]: https://travis-ci.org/feross/is-buffer
- [npm-image]: https://img.shields.io/npm/v/is-buffer.svg
- [npm-url]: https://npmjs.org/package/is-buffer
- [downloads-image]: https://img.shields.io/npm/dm/is-buffer.svg
- [downloads-url]: https://npmjs.org/package/is-buffer
- [standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
- [standard-url]: https://standardjs.com
- #### Determine if an object is a [`Buffer`](http://nodejs.org/api/buffer.html) (including the [browserify Buffer](https://github.com/feross/buffer))
- [![saucelabs][saucelabs-image]][saucelabs-url]
- [saucelabs-image]: https://saucelabs.com/browser-matrix/is-buffer.svg
- [saucelabs-url]: https://saucelabs.com/u/is-buffer
- ## Why not use `Buffer.isBuffer`?
- This module lets you check if an object is a `Buffer` without using `Buffer.isBuffer` (which includes the whole [buffer](https://github.com/feross/buffer) module in [browserify](http://browserify.org/)).
- It's future-proof and works in node too!
- ## install
- ```bash
- npm install is-buffer
- ```
- ## usage
- ```js
- var isBuffer = require('is-buffer')
- isBuffer(new Buffer(4)) // true
- isBuffer(undefined) // false
- isBuffer(null) // false
- isBuffer('') // false
- isBuffer(true) // false
- isBuffer(false) // false
- isBuffer(0) // false
- isBuffer(1) // false
- isBuffer(1.0) // false
- isBuffer('string') // false
- isBuffer({}) // false
- isBuffer(function foo () {}) // false
- ```
- ## license
- MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org).
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