Test if a value is a JavaScript primitive.
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> Test if a value is a JavaScript primitive.
``bash`
npm install @stdlib/assert-is-primitive
`javascript`
var isPrimitive = require( '@stdlib/assert-is-primitive' );
#### isPrimitive( value )
Tests if a value is a JavaScript primitive.
`javascript`
var bool = isPrimitive( false );
// returns true
- Seven primitives:
- string
-
-
-
-
- (ES6/ES2015)bigint
- (ES11/ES2020)
`javascript
var Boolean = require( '@stdlib/boolean-ctor' );
var Object = require( '@stdlib/object-ctor' );
var isPrimitive = require( '@stdlib/assert-is-primitive' );
var bool = isPrimitive( false );
// returns true
bool = isPrimitive( 0 );
// returns true
bool = isPrimitive( '' );
// returns true
bool = isPrimitive( null );
// returns true
bool = isPrimitive( void 0 );
// returns true
bool = isPrimitive( [] );
// returns false
bool = isPrimitive( {} );
// returns false
bool = isPrimitive( function noop() {} );
// returns false
bool = isPrimitive( new Boolean() );
// returns false
bool = isPrimitive( new String() );
// returns false
bool = isPrimitive( new Array() );
// returns false
bool = isPrimitive( new Object() );
// returns false
`
*
- [@stdlib/assert-is-boxed-primitive][@stdlib/assert/is-boxed-primitive]: test if a value is a JavaScript boxed primitive.
*
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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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/assert-is-primitive/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-is-primitive/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-is-primitive/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-primitive/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-primitive/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-is-primitive/blob/esm/README.md
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[@stdlib/assert/is-boxed-primitive]: https://www.npmjs.com/package/@stdlib/assert-is-boxed-primitive