Dave Fletcher davemfletcher

The introduction to Reactive Programming you've been missing

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

	using System;
	using System.Threading;

	static class Program {

	static void Main() {
	Console.Write("Performing some task... ");
	using (var progress = new ProgressBar()) {
	for (int i = 0; i <= 100; i++) {
	progress.Report((double) i / 100);

	<html>
	<body>
	<?php
	require 'pdfcrowd.php';

	try
	{
	if($_SERVER['REQUEST_METHOD'] == 'POST') {
	// create an API client instance
	$client = new Pdfcrowd("XX", "XXXXXXXXXXXXXXXXXXXXXXXXX");

	<?php

	/**
	* Simple wrapper around the
	* PHPUnit assertion library.
	*
	* Should::equal(21, $age);
	* Should::beGreaterThan(20, $age);
	*/
	class Should extends PHPUnit_Framework_Assert {

	<?php

	// ...

	public function testProtected()
	{
	$dateFormatter = new DateFormatter;

	$class = new \ReflectionClass('DateFormatter');

	<!doctype html>
	<html>
	<head>
	<title></title>
	<link rel="stylesheet" href="style.css">
	</head>
	<body>

	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
	<script>

	var o = $( {} );
	$.subscribe = o.on.bind(o);
	$.unscribe = o.off.bind(o);
	$.publish = o.trigger.bind(o);

	<snippet>
	<content><![CDATA[
	public function ${1:MethodName}_${2:StateUnderTest}_${3:ExpectedBehavior}()
	{
	${4: // assertions}
	}
	]]></content>
	<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
	<tabTrigger>test</tabTrigger>
	<!-- Optional: Set a scope to limit where the snippet will trigger -->