@stdlib/assert-is-ascii

Test whether a character belongs to the ASCII character set and whether this is true for all characters in a provided string.

Usage no npm install needed!

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  import stdlibAssertIsAscii from 'https://cdn.skypack.dev/@stdlib/assert-is-ascii';
</script>

README

isASCII

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Test whether a character belongs to the ASCII character set and whether this is true for all characters in a provided string.

Installation

npm install @stdlib/assert-is-ascii

Usage

var isASCII = require( '@stdlib/assert-is-ascii' );

isASCII( value )

Tests whether a character belongs to the ASCII character set and whether this is true for all characters in a provided string.

var bool = isASCII( 'beep' );
// returns true

Notes

  • For non-string values, the function returns false.

Examples

var isASCII = require( '@stdlib/assert-is-ascii' );

var out = isASCII( 'beep' );
// returns true

out = isASCII( '' );
// returns false

out = isASCII( 'È' );
// returns false

out = isASCII( 123 );
// returns false

CLI

Installation

To use the module as a general utility, install the module globally

npm install -g @stdlib/assert-is-ascii

Usage

Usage: is-ascii [options] [<string>]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.

Examples

$ is-ascii beep
true

To use as a standard stream,

$ echo -n 'beep' | is-ascii
true

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.

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License

See LICENSE.

Copyright

Copyright © 2016-2021. The Stdlib Authors.