@stdlib/assert-is-primitive NPM

isPrimitive

Test if a value is a JavaScript primitive.

Installation

npm install @stdlib/assert-is-primitive

Usage

var isPrimitive = require( '@stdlib/assert-is-primitive' );

isPrimitive( value )

Tests if a value is a JavaScript primitive.

var bool = isPrimitive( false );
// returns true

Notes

Seven primitives:
- string
- number
- boolean
- null
- undefined
- symbol (ES6/ES2015)
- bigint (ES11/ES2020)

Examples

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

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.