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+---
+title: "Community Round-up #21"
+layout: post
+author: Lou Husson
+---
+
+## React Router
+[Ryan Florence](http://ryanflorence.com/) and [Michael Jackson](http://twitter.com/mjackson) ported Ember's router to React in a project called [React Router](https://github.com/rackt/react-router). This is a very good example of both communities working together to make the web better!
+
+```javascript
+React.renderComponent((
+
+
+
+
+
+
+
+
+), document.body);
+```
+
+## Going Big with React
+
+Areeb Malik, from Facebook, talks about his experience using React. "On paper, all those JS frameworks look promising: clean implementations, quick code design, flawless execution. But what happens when you stress test Javascript? What happens when you throw 6 megabytes of code at it? In this talk, we'll investigate how React performs in a high stress situation, and how it has helped our team build safe code on a massive scale"
+
+[](https://skillsmatter.com/skillscasts/5429-going-big-with-react)
+
+
+
+
+## What is React?
+
+[Craig McKeachie](http://www.funnyant.com/author/admin/) author of [Javascript Framework Guide](http://www.funnyant.com/javascript-framework-guide/) wrote an excellent news named ["What is React.js? Another Template Library?](http://www.funnyant.com/reactjs-what-is-it/)
+
+- Is React a template library?
+- Is React similar to Web Components?
+- Are the Virtual DOM and Shadow DOM the same?
+- Can React be used with other JavaScript MVC frameworks?
+- Who uses React?
+- Is React a premature optimization if you aren’t Facebook or Instagram?
+- Can I work with designers?
+- Will React hurt my search engine optimizations (SEO)?
+- Is React a framework for building applications or a library with one feature?
+- Are components a better way to build an application?
+- Can I build something complex with React?
+
+
+## Referencing Dynamic Children
+
+While Matt Zabriskie was working on [react-tabs](https://www.npmjs.org/package/react-tabs) he discovered how to use React.Children.map and React.addons.cloneWithProps in order to [refere dynamic children](http://www.mattzabriskie.com/blog/react-referencing-dynamic-children).
+
+```javascript
+var App = React.createClass({
+ render: function () {
+ var children = React.Children.map(this.props.children, function(child, index) {
+ return React.addons.cloneWithProps(child, {
+ ref: 'child-' + index
+ });
+ });
+ return
{children}
;
+ }
+});
+```
+
+
+## JSX with Sweet.js using Readtables
+
+Have you ever wondered how JSX was implemented? James Long wrote a very instructive blog post that explains how to [compile JSX with Sweet.js using Readtables](http://jlongster.com/Compiling-JSX-with-Sweet.js-using-Readtables).
+
+[](http://jlongster.com/Compiling-JSX-with-Sweet.js-using-Readtables)
+
+
+## First Look: Getting Started with React
+
+[Kirill Buga](http://modernweb.com/authors/kirill-buga/) wrote an article on Modern Web explaining how [React is different from traditional MVC](http://modernweb.com/2014/07/23/getting-started-reactjs/) used by most JavaScript applications
+
+
+
+
+## React Draggable
+
+[Matt Zabriskie](https://github.com/mzabriskie) released a [project](https://github.com/mzabriskie/react-draggable) to make your react components draggable.
+
+[](http://mzabriskie.github.io/react-draggable/example/)
+
+
+## HTML Parser2 React
+
+[Jason Brown](http://browniefed.github.io/) adapted htmlparser2 to React: [htmlparser2-react](https://www.npmjs.org/package/htmlparser2-react). That allows you to convert raw HTML to the virtual DOM.
+This is not the intended way to use React but can be useful as last resort if you have an existing piece of HTML.
+
+```javascript
+var html = '
' +
+ '
hey this is a paragraph
1
2
' +
+ '
3
';
+var parsedComponent = reactParser(html, React);
+```
+
+
+## Building UIs with React
+
+If you haven't yet tried out React, Jacob Rios did a Hangout where he covers the most important aspects and thankfully he recorded it!
+
+
+
+
+## Random Tweets
+
+
