comment-regex

Regular expression for matching JavaScript comments

This is pretty fragile and created for performance reasons where using a real parser would be overkill.

Install

npm install comment-regex

Usage

import {commentRegex} from 'comment-regex';

// Contains a comment
commentRegex().test('/* unicorn */\nvar foo = true;');
//=> true

// Get the contents of a comment
commentRegex().exec('/* unicorn */\nvar foo = true;')[2].trim();

// Get all the comments
'/* unicorn */\nvar foo = true;\nvar unicorn = "rainbows"; // rainbow'.match(commentRegex());
//=> ['/* unicorn */', ' // rainbow']

API

The contents of the comment is in the first submatch.

commentRegex()

Returns a regex for matching line and block comments.

lineCommentRegex()

Returns a regex for matching line comments.

blockCommentRegex()

Returns a regex for matching block comments.

Important

If you run the regex against untrusted user input in a server context, you should give it a timeout.

I do not consider ReDoS a valid vulnerability for this package.