Test if a value is a SharedArrayBuffer.
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> Test if a value is a [SharedArrayBuffer][mdn-sharedarraybuffer].
``bash`
npm install @stdlib/assert-is-sharedarraybuffer
`javascript`
var isSharedArrayBuffer = require( '@stdlib/assert-is-sharedarraybuffer' );
#### isSharedArrayBuffer( value )
Tests if a value is a [SharedArrayBuffer][mdn-sharedarraybuffer].
`javascript
var SharedArrayBuffer = require( '@stdlib/array-shared-buffer' );
var bool;
try {
bool = isSharedArrayBuffer( new SharedArrayBuffer( 10 ) );
// returns true
} catch ( err ) {
console.log( 'Environment does not support SharedArrayBuffers.' );
}
bool = isSharedArrayBuffer( [] );
// returns false
`
`javascript
var Float32Array = require( '@stdlib/array-float32' );
var Float64Array = require( '@stdlib/array-float64' );
var Int8Array = require( '@stdlib/array-int8' );
var Int16Array = require( '@stdlib/array-int16' );
var Int32Array = require( '@stdlib/array-int32' );
var Uint8Array = require( '@stdlib/array-uint8' );
var Uint8ClampedArray = require( '@stdlib/array-uint8c' );
var Uint16Array = require( '@stdlib/array-uint16' );
var Uint32Array = require( '@stdlib/array-uint32' );
var ArrayBuffer = require( '@stdlib/array-buffer' );
var SharedArrayBuffer = require( '@stdlib/array-shared-buffer' );
var isSharedArrayBuffer = require( '@stdlib/assert-is-sharedarraybuffer' );
var bool;
try {
bool = isSharedArrayBuffer( new SharedArrayBuffer( 10 ) );
// returns true
} catch ( err ) {
console.log( 'Environment does not support SharedArrayBuffers.' );
}
bool = isSharedArrayBuffer( new ArrayBuffer( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Float32Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Int8Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Uint8Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Uint8ClampedArray( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Int16Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Uint16Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Int32Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Uint32Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Float64Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( new Array( 10 ) );
// returns false
bool = isSharedArrayBuffer( {} );
// returns false
bool = isSharedArrayBuffer( null );
// returns false
`
*
- [@stdlib/assert-is-arraybuffer][@stdlib/assert/is-arraybuffer]: test if a value is an ArrayBuffer.
- [@stdlib/assert-is-typed-array][@stdlib/assert/is-typed-array]: test if a value is a typed array.
*
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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[mdn-sharedarraybuffer]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer
[@stdlib/assert/is-arraybuffer]: https://www.npmjs.com/package/@stdlib/assert-is-arraybuffer
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