# isString [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] > Test if a value is a string.
## Installation ```bash npm install @stdlib/assert-is-string ```
## Usage ```javascript var isString = require( '@stdlib/assert-is-string' ); ``` #### isString( value ) Tests if a value is a `string`. ```javascript var bool = isString( 'beep' ); // returns true bool = isString( new String( 'beep' ) ); // returns true ``` #### isString.isPrimitive( value ) Tests if a `value` is a primitive `string`. ```javascript var bool = isString.isPrimitive( 'beep' ); // returns true bool = isString.isPrimitive( new String( 'boop' ) ); // returns false ``` #### isString.isObject( value ) Tests if a `value` is a `String` object. ```javascript var bool = isString.isObject( 'beep' ); // returns false bool = isString.isObject( new String( 'boop' ) ); // returns true ```
## Examples ```javascript var isString = require( '@stdlib/assert-is-string' ); var bool = isString( 'beep' ); // returns true bool = isString( new String( 'beep' ) ); // returns true bool = isString( 5 ); // returns false bool = isString( null ); // returns false bool = isString( void 0 ); // returns false bool = isString( {} ); // returns false bool = isString( [] ); // returns false bool = isString( function foo() {} ); // returns false ```
* * * ## Notice 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]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2022. The Stdlib [Authors][stdlib-authors].