is-regexp-string

Check if a string is a regular expression

• The string must include the opening & closing forward slash (/).
• Regular expression flags, e.g. gim, may be optionally included.

Install

$ npm install is-regexp-string

Usage

const isRegexpString = require('is-regexp-string');
 
// The forward slashes of the regular expression are *required*
isRegexpString('/(foo|bar)/gi');
//=> true
 
isRegexpString('foo|bar');
//=> false
 
// Valid RegExp, but matches everything
isRegexpString('/foo|/');
//=> true

Related

• is-regexp - Check if a value is a regular expression

License

MIT