Regexies

The library includes a list of popular regex functions for every project usage. You can use special builder functions to create your own regexes.

Please let us know if you see any bugs or need improvements to existing functions. Thank you!

Install

Install using npm:

npm i regexies

Import

Node.js

const regexies = require('regexies');
regexies.isPassword('sometestpassword');
// or
const isPassword = require('regexies').isPassword;

ES6

import regexies from 'regexies';
regexies.isPassword('sometestpassword');
// or
import { isPassword } from 'regexies';

Optimization

Import only functions you need to reduce bundle size.

// Node.js
const isPassword = require('regexies/src/isPassword');
// ES6
import isPassword from 'regexies/src/isPassword';

Use with babel-plugin-import:

{
  "libraryName": "regexies",
  "libraryDirectory": "src",
}

Documentation

Visit Regexies documentation on Github Pages to get full information about all available functions with examples and test tools.

Build your own regex using these functions:

• is
• createIs - create your own regex using our regex constructor

Escape special characters using these functions:

• escape
• escapeShort and escapeLong

Verify strings using these functions:

• Email address
• Password
• UUID
• Bearer header
• JWT token
• URL
• HEX color
• Image MIME type
• Audio MIME type
• Video MIME type
• Any custom MIME type
• Numbers
• ObjectId/MongoId
• Roman number
• Twitter handle
• LinkedIn public profile URL
• Facebook public profile URL
• Slug
• isEmojiOnly

escape

Use this function to escape special characters that should be escaped in Regex. The function decides which helper function to use escapeShort or escapeLong depends on length of the string.

/**
 * @param  {String} string String to escape
 */
escape(string) // .^$*+?()[]{}\|/- to \.\^\$\*\+\?\(\)\[\]\{\}\\\|\/\-

escapeShort and escapeLong

Use escapeShort to escape strings with length <= 60 and escapeLong for strings longer than 60 symbols.

/**
 * @param  {String} string String to escape
 */
escapeShort(string) // custom function with for loop
escapeLong(string)  // string.replace(/[\.\^\$\*\+\?\(\)\[\]\{\}\\\|\/\-]/g, '\\$&');

There is no big difference if you want to escape single string, but if your task requires hundrets of iteration then the impact could be significant. Let's take a look at table with performance results:

String length	Iterations	escapeShort	escapeLong
20	10k	7ms	7ms
20	100k	30ms	56ms
50	10k	7ms	10ms
50	100k	73ms	100ms
100	10k	13ms	11ms
100	100k	133ms	102ms
1000	10k	134ms	73ms
1000	100k	1315ms	732ms

Tests

Tests are not included in regexies library if you install it through npm. Please clone git repo of the library to find tests.