earthgecko

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1

prograhammer

Git Cheat Sheet

Single Git Commands

Initialize a git repo in the current directory

# git init

Add a remote called "origin"

git remote add origin https://github.com/your-username-here/your-repo-here.git

jctosta

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	screen -S <session_name>
List running sessions / screens	screen -ls
Attach to a running session	screen -x
Attach to a running session with name	screen -r

xero

IRC Reference

Not intended as a guide for newbies, more like a "cheat sheet" for the somewhat experienced IRC user, especially one who wields some power over a channel.

The Basics

• /join #channel
  • Joins the specified channel.
• /part #channel
• Leaves the specified channel.

alces

• using Ansible command line:

ansible-playbook --connection=local 127.0.0.1 playbook.yml

• using inventory:

127.0.0.1 ansible_connection=local

Rich-Harris

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.

kubaceg

RUN curl -o ioncube.tar.gz http://downloads3.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz \
    && tar -xvvzf ioncube.tar.gz \
    && mv ioncube/ioncube_loader_lin_5.6.so `php-config --extension-dir` \
    && rm -Rf ioncube.tar.gz ioncube \
    && docker-php-ext-enable ioncube_loader_lin_5.6

ryanoglesby08

/*
  Incredibly simple Node.js and Express application server for serving static assets.
  
  DON'T USE THIS IN PRODUCTION!
    It is meant for learning purposes only. This server is not optimized for performance, 
    and is missing key features such as error pages, compression, and caching.
  
  For production, I recommend using an application framework that supports server-side rendering, 
    such as Next.js. https://nextjs.org

gragland

import { useState, useCallback, useRef } from "react";

// Usage
function App() {
  const [hoverRef, isHovered] = useHover();

  return (
    <div ref={hoverRef}>
      {isHovered ? '😁' : '☹️'}
    </div>

ali-kamalizade

// app.js: register the route. In our case, we don't want authorization for this route
app.use('/healthcheck', require('./routes/healthcheck.routes'));


// healthcheck.routes.js: return a 2xx response when your server is healthy, else send a 5xx response
import express from 'express';

const router = express.Router({});
router.get('/', async (_req, res, _next) => {
	// optional: add further things to check (e.g. connecting to dababase)