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54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
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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]
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[travis-image]: https://img.shields.io/travis/feross/is-buffer/master.svg
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[travis-url]: https://travis-ci.org/feross/is-buffer
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[npm-image]: https://img.shields.io/npm/v/is-buffer.svg
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[npm-url]: https://npmjs.org/package/is-buffer
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[downloads-image]: https://img.shields.io/npm/dm/is-buffer.svg
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[downloads-url]: https://npmjs.org/package/is-buffer
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[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
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[standard-url]: https://standardjs.com
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#### Determine if an object is a [`Buffer`](http://nodejs.org/api/buffer.html) (including the [browserify Buffer](https://github.com/feross/buffer))
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[![saucelabs][saucelabs-image]][saucelabs-url]
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[saucelabs-image]: https://saucelabs.com/browser-matrix/is-buffer.svg
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[saucelabs-url]: https://saucelabs.com/u/is-buffer
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## Why not use `Buffer.isBuffer`?
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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/)).
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It's future-proof and works in node too!
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## install
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```bash
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npm install is-buffer
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```
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## usage
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```js
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var isBuffer = require('is-buffer')
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isBuffer(new Buffer(4)) // true
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isBuffer(undefined) // false
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isBuffer(null) // false
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isBuffer('') // false
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isBuffer(true) // false
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isBuffer(false) // false
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isBuffer(0) // false
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isBuffer(1) // false
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isBuffer(1.0) // false
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isBuffer('string') // false
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isBuffer({}) // false
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isBuffer(function foo () {}) // false
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```
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## license
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MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org).
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