staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

P4

Windows Registry Editor Version 5.00
; Default color scheme
; for Windows command prompt.

; Values stored as 00-BB-GG-RR
[HKEY_CURRENT_USER\Console]
; BLACK DGRAY
"ColorTable00"=dword:00000000
"ColorTable08"=dword:00808080
; BLUE LBLUE

chourobin

Bridging Native & React for iOS & Android

js -> native

• Simple Example
• Callbacks
• Promises
• Properties

native -> js

jarretmoses

RN < 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
RN >= 0.50 -  watchman watch-del-all && rm -rf $TMPDIR/react-native-packager-cache-* && rm -rf $TMPDIR/metro-bundler-cache-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
RN >= 0.63 - watchman watch-del-all && rm -rf node_modules && npm install && rm -rf /tmp/metro-* && npm run start --reset-cache

npm >= 5 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache verify && npm install && npm start -- --reset-cache

Windows - del %appdata%\Temp\react-native-* & cd android & gradlew clean & cd .. & del node_modules/ & npm cache clean --force & npm install & npm start -- --reset-cache

crtr0

// set-up a connection between the client and the server
var socket = io.connect();

// let's assume that the client page, once rendered, knows what room it wants to join
var room = "abc123";

socket.on('connect', function() {
   // Connected, let's sign-up for to receive messages for this room
   socket.emit('room', room);
});

akhoury

  // for detailed comments and demo, see my SO answer here http://stackoverflow.com/questions/8853396/logical-operator-in-a-handlebars-js-if-conditional/21915381#21915381
  
  /* a helper to execute an IF statement with any expression
    USAGE:
   -- Yes you NEED to properly escape the string literals, or just alternate single and double quotes 
   -- to access any global function or property you should use window.functionName() instead of just functionName()
   -- this example assumes you passed this context to your handlebars template( {name: 'Sam', age: '20' } ), notice age is a string, just for so I can demo parseInt later
   <p>
     {{#xif " name == 'Sam' && age === '12' " }}
       BOOM

theodric

## So you want to use stuff like 'tmux' and 'lolcat' on the Steam Deck, but they haven't been included in the base OS?
# One way to do it is this.
# 1. setup a chroot environment so there is a file structure in which Pacman can download/unpack packages and their dependencies.
# 2. don't use it as a chroot environment; rather, add the various /bin directories inside it to your $PATH, and create an /etc/ld.so.conf.d/deck-local-arch.conf to permit the bins to find the libs they need.

mkdir -p ~/.local/packer
cd ~/.local
#these steps are required, or else the pacstrap will fail with 'marginal trust' errors
pacman -Sy archlinux-keyring
pacman-key --populate archlinux

gubatron

DHT Walkthrough Notes

I've put together these notes as I read about DHT's in depth and then learned how the libtorrent implementation based on the Kademlia paper actually works.

What problem does this solve?

400,000,000,000 (400 billion stars), that's a 4 followed by 11 zeros. The number of atoms in the universe is estimated to be around 10^82. A DHT with keys of 160 bits, can have 2^160 possible numbers, which is around 10^48

mafintosh

Hyperswarm DHT setup

Checking your network for P2Pness

Running a node

Running a dht node is as simple as installing the DHT cli.

npm i -g @hyperswarm/cli

nybblr

// Create a Promise that resolves after ms time
var timer = function(ms) {
  return new Promise(resolve => {
    setTimeout(resolve, ms);
  });
};

// Repeatedly generate a number starting
// from 0 after a random amount of time
var source = async function*() {