isBuffer

Test if a value is a Buffer object.

Installation

npm install @stdlib/assert-is-buffer

Usage

var isBuffer = require( '@stdlib/assert-is-buffer' );

isBuffer( value )

Tests if a value is a Buffer object.

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

var value = new Buffer( [ 1, 2, 3, 4 ] );

var bool = isBuffer( value );
// returns true

Notes

• The implementation supports both Node.js and browser polyfill Buffer objects.

Examples

var Int8Array = require( '@stdlib/array-int8' );
var Buffer = require( '@stdlib/buffer-ctor' );
var isBuffer = require( '@stdlib/assert-is-buffer' );

var bool = isBuffer( new Buffer( [ 1, 2, 3, 4 ] ) );
// returns true

bool = isBuffer( new Buffer( 'beep' ) );
// returns true

bool = isBuffer( [] );
// returns false

bool = isBuffer( {} );
// returns false

bool = isBuffer( new Int8Array() );
// returns false

bool = isBuffer( function foo() {} );
// returns false

bool = isBuffer( null );
// returns false

bool = isBuffer( void 0 );
// returns false

bool = isBuffer( 'beep' );
// returns false

bool = isBuffer( 5 );
// returns false

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.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.