Roma P. rpominov

key is pretty much crucial for state perservation in React. As of React 0.13 it can't do the following things:

<Comp key={1} /><Comp key={1} />

When a beginner asks you "when do I use semi-colons?" would you rather say this?

// what people who say "use semicolons!!" say
class Foo {
  prop = {
  }; // yes

The introduction to Reactive Programming you've been missing

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.

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Easily checkout local copies of pull requests from remotes:

git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

	/**
	* Stores are just seed + reduce function.
	* Notice they are plain objects and don't own the state.
	*/
	const countUpStore = {
	seed: {
	counter: 0
	},

	reduce(state, action) {

	window.ns = (function(){
	var modules = {};
	function _ns(name, initializer) {
	if (initializer) {
	return modules[name] = function() {
	var module = {
	exports: {}
	};
	initializer(module.exports, module);
	modules[name] = function() {


	<html>
	<head>
	<title>Test</title>
	<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
	<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
	<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
	<script src="http://fb.me/react-0.5.1.js"></script>
	<script src="http://fb.me/JSXTransformer-0.5.1.js"></script>
	</head>