@stdlib/assert-is-string
v0.2.2
Published
Test if a value is a string.
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isString
Test if a value is a string.
Installation
npm install @stdlib/assert-is-string
Usage
var isString = require( '@stdlib/assert-is-string' );
isString( value )
Tests if a value is a string
.
var bool = isString( 'beep' );
// returns true
bool = isString( new String( 'beep' ) );
// returns true
isString.isPrimitive( value )
Tests if a value
is a primitive string
.
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.
var bool = isString.isObject( 'beep' );
// returns false
bool = isString.isObject( new String( 'boop' ) );
// returns true
Examples
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, 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.