Package Exports
- @stdlib/assert-is-hex-string
- @stdlib/assert-is-hex-string/lib/index.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/assert-is-hex-string) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
isHexString
Test whether a string contains only hexadecimal digits.
Installation
npm install @stdlib/assert-is-hex-stringUsage
var isHexString = require( '@stdlib/assert-is-hex-string' );isHexString( value )
Tests whether a string contains only hexadecimal digits.
var bool = isHexString( '0123456789abcdefABCDEF' );
// returns trueNotes
- For non-string values, the function returns
false. - The function does not recognize
x(as in the standard0xprefix).
Examples
var isHexString = require( '@stdlib/assert-is-hex-string' );
var out = isHexString( '0123456789abcdefABCDEF' );
// returns true
out = isHexString( '' );
// returns false
out = isHexString( '0xffffff' );
// returns false
out = isHexString( 123 );
// returns falseCLI
Installation
To use the module as a general utility, install the module globally
npm install -g @stdlib/assert-is-hex-stringUsage
Usage: is-hex-string [options] [<string>]
Options:
-h, --help Print this message.
-V, --version Print the package version.Examples
$ is-hex-string 0123456789abcdefABCDEF
trueTo use as a standard stream,
$ echo -n '0123456789abcdefABCDEF' | is-hex-string
trueNotice
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 © 2016-2022. The Stdlib Authors.