Buffer

April 27, 2026 · View on GitHub

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Buffer

NPM version Build Status Coverage Status

Buffer constructor.

Installation

npm install @stdlib/buffer-ctor

Alternatively,

  • To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
  • If you are using Deno, visit the deno branch (see README for usage intructions).
  • For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

var Buffer = require( '@stdlib/buffer-ctor' );

Buffer( size )

Allocates a Buffer having a specified number of bytes.

var b = new Buffer( 10 );
// returns <Buffer>

Buffer( array )

Allocates a Buffer from an array of octets.

var b = new Buffer( [ 1, 2, 3, 4 ] );
// returns <Buffer>[ 1, 2, 3, 4 ]

Buffer( buffer )

Copies buffer data to a new Buffer instance.

var b1 = new Buffer( [ 1, 2, 3, 4 ] );
var b2 = new Buffer( b1 );
// returns <Buffer>[ 1, 2, 3, 4 ]

Buffer( str[, encoding] )

Returns a Buffer containing a provided string.

var b = new Buffer( 'beep boop' );
// returns <Buffer>

Properties

TODO: add properties

Methods

TODO: add methods

Examples

var ctor = require( '@stdlib/buffer-ctor' );

var b;
var i;

// Allocate uninitialized memory:
if ( typeof ctor.alloc === 'function' ) {
    b = ctor.alloc( 10 );
} else {
    b = new ctor( 10 );
}

// Zero fill the buffer...
for ( i = 0; i < b.length; i++ ) {
    b[ i ] = 0;
}
console.log( b );

See Also

Notice

This package is part of 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, see the main project repository.

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License

See LICENSE.

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