Lekhnath Rijal lekhnath

The introduction to Reactive Programming you've been missing

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.

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

	// SocketIO cheat sheet
	// SocketIO is a library that makes websockets communications easier.
	// Page: http://socket.io/
	// ref: http://stackoverflow.com/a/10099325

	// send to current request socket client
	socket.emit('message', "this is a test");

	// sending to all clients, include sender
	io.sockets.emit('message', "this is a test");

	# install dependencies
	sudo apt-get update
	sudo apt-get install -y build-essential
	sudo apt-get install -y cmake
	sudo apt-get install -y libgtk2.0-dev
	sudo apt-get install -y pkg-config
	sudo apt-get install -y python-numpy python-dev
	sudo apt-get install -y libavcodec-dev libavformat-dev libswscale-dev
	sudo apt-get install -y libjpeg-dev libpng-dev libtiff-dev libjasper-dev

	import { Component } from "React";

	export var Enhance = ComposedComponent => class extends Component {
	constructor() {
	this.state = { data: null };
	}
	componentDidMount() {
	this.setState({ data: 'Hello' });
	}
	render() {

	{
	// http://eslint.org/docs/rules/

	"ecmaFeatures": {
	"binaryLiterals": false, // enable binary literals
	"blockBindings": false, // enable let and const (aka block bindings)
	"defaultParams": false, // enable default function parameters
	"forOf": false, // enable for-of loops
	"generators": false, // enable generators
	"objectLiteralComputedProperties": false, // enable computed object literal property names

	var mediaJSON = { "categories" : [ { "name" : "Movies",
	"videos" : [
	{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
	"subtitle" : "By Blender Foundation",
	"thumb" : "images/BigBuckBunny.jpg",
	"title" : "Big Buck Bunny"
	},
	{ "description" : "The first Blender Open Movie from 2006",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],

	require('font-awesome/css/font-awesome.css');

	document.body.innerHTML = '<i class="fa fa-fw fa-question"></i>';

	(function() {
	'use strict';

	function AnotherController($scope, socket) {
	// use the socket factory through your app, but you must use socket.then
	// so that the actions occur once the socket is established
	socket.then(function(socket) {
	socket.emit('some_socket_event', {});
	});

	/*
	* twitter-entities.js
	* This function converts a tweet with "entity" metadata
	* from plain text to linkified HTML.
	*
	* See the documentation here: http://dev.twitter.com/pages/tweet_entities
	* Basically, add ?include_entities=true to your timeline call
	*
	* Based off existing code from Wade Simmons
	* Licensed under the MIT license