| Server IP : 82.148.16.210 / Your IP : 216.73.216.19 Web Server : nginx/1.29.5 System : Linux mail.sarafai.ru 6.1.0-43-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.162-1 (2026-02-08) x86_64 User : root ( 0) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /usr/share/doc/node-is-buffer/ |
Upload File : |
# 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(Buffer.alloc(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).