@stdlib/regexp-regexp

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reRegExp

Regular expression to parse a regular expression string.

Installation

npm install @stdlib/regexp-regexp

Usage

var reRegExp = require( '@stdlib/regexp-regexp' );

reRegExp()

Returns a regular expression to parse a regular expression string.

var RE_REGEXP = reRegExp();
var bool = RE_REGEXP.test( '/^beep$/' );
// returns true

bool = RE_REGEXP.test( '' );
// returns false

var parts = RE_REGEXP.exec( '/^.*$/ig' );
// returns [ '/^.*$/ig', '^.*
Regular expression strings should be escaped.
var RE_REGEXP = reRegExp();

var bool = RE_REGEXP.test( '/^\/([^\/]+)\/(.*)$/' );
// returns false

bool = RE_REGEXP.test( '/^\\/([^\\/]+)\\/(.*)$/' );
// returns true
reRegExp.REGEXP
Regular expression to parse a regular expression string.
var bool = reRegExp.REGEXP.test( '/^beep$/' );
// returns true
Examples
var reRegExp = require( '@stdlib/regexp-regexp' );

var RE_REGEXP = reRegExp();

var bool = RE_REGEXP.test( '/beep/' );
// returns true

bool = RE_REGEXP.test( '/^.*$/ig' );
// returns true

bool = RE_REGEXP.test( '/^\\/([^\\/]+)\\/(.*)$/' );
// returns true

bool = RE_REGEXP.test( '/^\/([^\/]+)\/(.*)$/' );
// returns false

bool = RE_REGEXP.test( '/boop' );
// returns false

bool = RE_REGEXP.test( '' );
// returns false

See Also

@stdlib/utils-regexp-from-string: create a regular expression from a regular expression 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  2016-2026. The Stdlib Authors.

, 'ig', 'index': 0, 'input': '/^.*$/ig' ]

Regular expression strings should be escaped.

__CODE_BLOCK_3__

reRegExp.REGEXP

Regular expression to parse a regular expression __INLINE_CODE_1__.

__CODE_BLOCK_4__

Examples

__CODE_BLOCK_5__

---

See Also

• __INLINE_CODE_2__: create a regular expression from a regular expression 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 2016-2026. The Stdlib Authors.