To help you get started, we've collected the most common ways that bad-words is being used within popular public projects.

RocketChat / Rocket.Chat / app / lib / server / methods / filterBadWords.js View on Github

callbacks.add('beforeSaveMessage', function(message) {
	if (settings.get('Message_AllowBadWordsFilter')) {
		const badWordsList = settings.get('Message_BadWordsFilterList');
		let options;

		// Add words to the blacklist
		if (!!badWordsList && badWordsList.length) {
			options = {
				list: badWordsList.split(','),
			};
		}
		const filter = new Filter(options);
		message.msg = filter.clean(message.msg);
	}

	return message;
}, 1, 'filterBadWords');

View more ways to use bad-words

bad-words

A javascript filter for badwords

Requirements

As of version 2, requires you either have an environment that understands ES2016 and beyond or a transpiler like Babel.

Installation

npm install bad-words --save

Usage

var Filter = require('bad-words'),
    filter = new Filter();

console.log(filter.clean("Don't be an ash0le")); //Don't be an ******

Placeholder Overrides

var Filter = require('bad-words');
var customFilter = new Filter({ placeHolder: 'x'});

customFilter.clean("Don't be an ash0le"); //Don't be an xxxxxx

Regex Overrides

var filter = new Filter({ regex: /\*|\.|$/gi });

var filter = new Filter({ replaceRegex:  /[A-Za-z0-9가-힣_]/g }); 
//multilingual support for word filtering

Add words to the blacklist

var filter = new Filter(); 

filter.addWords('some', 'bad', 'word');

filter.clean("some bad word!") //**** *** ****!

//or use an array using the spread operator

var newBadWords = ['some', 'bad', 'word'];

filter.addWords(...newBadWords);

filter.clean("some bad word!") //**** *** ****!

//or

var filter = new Filter({ list: ['some', 'bad', 'word'] }); 

filter.clean("some bad word!") //**** *** ****!

Instantiate with an empty list

var filter = new Filter({ emptyList: true }); 
filter.clean('hell this wont clean anything'); //hell this wont clean anything

Remove words from the blacklist

let filter = new Filter(); 

filter.removeWords('hells', 'sadist');

filter.clean("some hells word!"); //some hells word!

//or use an array using the spread operator

let removeWords = ['hells', 'sadist'];

filter.removeWords(...removeWords);

filter.clean("some sadist hells word!"); //some sadist hells word!

API

constructor

Filter constructor.

Parameters

• options object Filter instance options (optional, default {})
  • options.emptyList boolean Instantiate filter with no blacklist
  • options.list array Instantiate filter with custom list
  • options.placeHolder string Character used to replace profane words.
  • options.regex string Regular expression used to sanitize words before comparing them to blacklist.
  • options.replaceRegex string Regular expression used to replace profane words with placeHolder.

isProfane

Determine if a string contains profane language.

Parameters

• string string String to evaluate for profanity.

replaceWord

Replace a word with placeHolder characters;

Parameters

• string string String to replace.

clean

Evaluate a string for profanity and return an edited version.

Parameters

• string string Sentence to filter.

addWords

Add word(s) to blacklist filter / remove words from whitelist filter

Parameters

• word ...string Word(s) to add to blacklist

removeWords

Add words to whitelist filter

Parameters

• word ...string Word(s) to add to whitelist.

Testing

npm test

License

The MIT License (MIT)

Copyright (c) 2013 Michael Price

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.