Test if a value is a regular expression string.
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> Test if a value is a regular expression string.
``bash`
npm install @stdlib/assert-is-regexp-string
`javascript`
var isRegExpString = require( '@stdlib/assert-is-regexp-string' );
#### isRegExpString( value )
Tests if a value is a regular expression string.
`javascript`
var bool = isRegExpString( '/^beep$/' );
// returns true
`javascript
var isRegExpString = require( '@stdlib/assert-is-regexp-string' );
var bool;
bool = isRegExpString( '/beep/' );
// returns true
bool = isRegExpString( '/beep/gim' );
// returns true
bool = isRegExpString( 'beep' );
// returns false
bool = isRegExpString( '' );
// returns false
bool = isRegExpString( null );
// returns false
`
- [@stdlib/assert-is-regexp-string-cli][@stdlib/assert-is-regexp-string-cli]: CLI package for use as a command-line utility.
- [@stdlib/assert-is-regexp][@stdlib/assert/is-regexp]: test if a value is a regular expression.
*
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
[@stdlib/assert-is-regexp-string-cli]: https://www.npmjs.com/package/@stdlib/assert-is-regexp-string-cli
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[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[cli-section]: https://github.com/stdlib-js/assert-is-regexp-string#cli
[cli-url]: https://github.com/stdlib-js/assert-is-regexp-string/tree/cli
[@stdlib/assert-is-regexp-string]: https://github.com/stdlib-js/assert-is-regexp-string/tree/main
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/assert-is-regexp-string/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-is-regexp-string/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-is-regexp-string/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-regexp-string/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-regexp-string/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-is-regexp-string/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/assert-is-regexp-string/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-is-regexp-string/main/LICENSE
[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
[@stdlib/assert/is-regexp]: https://www.npmjs.com/package/@stdlib/assert-is-regexp