Lawlez

2021 Web Developer's Toolbox

Bundle Analyzer tools

• bundlephobia: find the cost of adding a npm package to your bundle
• Snyk Advisor: compare Popularity, Maintenance, Security and Community of any pakage
• best of JS: find popular pakages for your needs

Design and UI

• material color tool: Create, share, and apply color palettes to your UI, as well as measure the accessibility level of any color combination.
• Material Design Guidelines: Create intuitive and beautiful products with Material Design

Lawlez

#evil regex


1. install rxxr2: https://www.cs.bham.ac.uk/~hxt/research/rxxr2/
2. test regex with rxxr2: ./scan.bin /(a+)+/

visualize regex with https://regexper.com/


further analysis tools:

Lawlez

GIF89a.........ÿ...!ù......,........<svg onerror=alert(00) />;

Lawlez

import crypto from 'browserify-aes'

/**********************************************************************
*
*        DECRYPTION MODULE FOR USE IN BROWSER DURING RUNTIME          *
*
***********************************************************************/
const decrypt = hash => {
    const hash = hash.data
    //get IV from input, make sure its no longer than 16 bytes

Lawlez

Keybase proof

I hereby claim:

• I am lawlez on github.
• I am lwlx (https://keybase.io/lwlx) on keybase.
• I have a public key whose fingerprint is 35A0 EDE7 758E ED76 2E45 10E7 C382 7DD3 E0DC 4810

To claim this, I am signing this object:

Lawlez

Nmap scan report for 192.168.1.21
Host is up (0.0025s latency).
Not shown: 990 closed ports
PORT     STATE SERVICE     VERSION
21/tcp   open  ftp
| fingerprint-strings: 
|   GenericLines: 
|     220 FTP FTP server ready.
|     command not understood.
|     command not understood.

Lawlez

import React, {useState, useEffect} from 'react'
import ReactDOM from 'react-dom'
import './index.css'
import Login from './login'
import {w3cwebsocket as W3CWebSocket} from 'websocket'

const client = new W3CWebSocket('ws://localhost:8080')
const Application = () => {
	const [isLoggedIn, setIsLoggedIn] = useState(false)
	const [userName, setUserName] = useState('username')

Lawlez

0x2674b8c8DDc36e4844cB0F09AA2FD1Eea0d43591

Lawlez

0xF9a524a90b0d80DA0fAAa1e1E9e7af879591dDb2