isBlankString

Test if a value is a blank string.

Installation

npm install @stdlib/assert-is-blank-string

Usage

var isBlankString = require( '@stdlib/assert-is-blank-string' );

isBlankString( value )

Tests if a value is a blank string (i.e., an empty string or a string consisting only of whitespace characters).

var bool = isBlankString( '   ' );
// returns true

bool = isBlankString( '' );
// returns true

bool = isBlankString( 0 );
// returns false

Examples

var isBlankString = require( '@stdlib/assert-is-blank-string' );

var out = isBlankString( '   ' );
// returns true

out = isBlankString( '\t\t\t' );
// returns true

out = isBlankString( '\r\n' );
// returns true

out = isBlankString( '' );
// returns true

out = isBlankString( 'beep boop' );
// returns false

out = isBlankString( null );
// returns false

See Also

• @stdlib/assert-is-blank-string-cli: CLI package for use as a command-line utility.
• @stdlib/assert-is-string: test if a value is a string.
• @stdlib/assert-is-empty-string: test if a value is an empty string.

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.