# copyBuffer [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] > Copy [buffer][@stdlib/buffer/ctor] data to a new [`Buffer`][@stdlib/buffer/ctor] instance.
## Installation ```bash npm install @stdlib/buffer-from-buffer ```
## Usage ```javascript var copyBuffer = require( '@stdlib/buffer-from-buffer' ); ``` #### copyBuffer( buffer ) Copies [buffer][@stdlib/buffer/ctor] data to a new [`Buffer`][@stdlib/buffer/ctor] instance. ```javascript var array2buffer = require( '@stdlib/buffer-from-array' ); var b1 = array2buffer( [ 1, 2, 3, 4 ] ); // returns [ 1, 2, 3, 4 ] var b2 = copyBuffer( b1 ); // returns [ 1, 2, 3, 4 ] ```
## Examples ```javascript var allocUnsafe = require( '@stdlib/buffer-alloc-unsafe' ); var copyBuffer = require( '@stdlib/buffer-from-buffer' ); var bool; var b1; var b2; var i; // Allocate a new buffer: b1 = allocUnsafe( 10 ); // Generate a new buffer from the existing buffer: b2 = copyBuffer( b1 ); bool = ( b2 === b1 ); // returns false bool = ( b2.length === b1.length ); // returns true for ( i = 0; i < b2.length; i++ ) { console.log( b2[ i ] === b1[ i ] ); // => true } ```
* * * ## Notice This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more. For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2022. The Stdlib [Authors][stdlib-authors].