Supported Elements React attempts to support all common elements in both HTML and SVG. Any lower case tag in JSX will be rendered to an element with that tag. SVG elements must be contained within an <svg> element to work properly. Using React.DOM Factory methods If you aren't using JSX and are using the React.DOM.* API to create elements, then you are slightly more limited and there is list of supported elements that will be available on that API. HTML Elements The following HTML e

So far, we've looked at how to write a single component to display data and handle user input. Next let's examine one of React's finest features: composability. Motivation: Separation of Concerns By building modular components that reuse other components with well-defined interfaces, you get much of the same benefits that you get by using functions or classes. Specifically you can separate the different concerns of your app however you please simply by building new components. By building a c

React.createFactory factoryFunction createFactory( string/ReactClass type ) Return a function that produces ReactElements of a given type. Like React.createElement, the type argument can be either an html tag name string (eg. 'div', 'span', etc), or a ReactClass.

React React is the entry point to the React library. If you're using one of the prebuilt packages it's available as a global; if you're using CommonJS modules you can require() it. React.Component class Component This is the base class for React Components when they're defined using ES6 classes. See Reusable Components for how to use ES6 classes with React. For what methods are actually provided by the base class, see the Component API. React.createClass ReactClass createClass(object spe

One of the first questions people ask when considering React for a project is whether their application will be as fast and responsive as an equivalent non-React version. The idea of re-rendering an entire subtree of components in response to every state change makes people wonder whether this process negatively impacts performance. React uses several clever techniques to minimize the number of costly DOM operations required to update the UI. Avoiding reconciling the DOM React makes use of a

ReactDOM.unmountComponentAtNode boolean unmountComponentAtNode(DOMElement container) Remove a mounted React component from the DOM and clean up its event handlers and state. If no component was mounted in the container, calling this function does nothing. Returns true if a component was unmounted and false if there was no component to unmount.

ReactDOMServer.renderToString string renderToString(ReactElement element) Render a ReactElement to its initial HTML. This should only be used on the server. React will return an HTML string. You can use this method to generate HTML on the server and send the markup down on the initial request for faster page loads and to allow search engines to crawl your pages for SEO purposes. If you call ReactDOM.render() on a node that already has this server-rendered markup, React will preserve it and on

Mounting: componentDidMount void componentDidMount() Invoked once, only on the client (not on the server), immediately after the initial rendering occurs. At this point in the lifecycle, you can access any refs to your children (e.g., to access the underlying DOM representation). The componentDidMount() method of child components is invoked before that of parent components. If you want to integrate with other JavaScript frameworks, set timers using setTimeout or setInterval, or send AJAX requ

Note: cloneWithProps is deprecated. Use React.cloneElement instead. In rare situations, you may want to create a copy of a React element with different props from those of the original element. One example is cloning the elements passed into this.props.children and rendering them with different props: var cloneWithProps = require('react-addons-clone-with-props'); var _makeBlue = function(element) { return cloneWithProps(element, {style: {color: 'blue'}}); }; var Blue = React.createClass({

You've already learned how to display data with React. Now let's look at how to make our UIs interactive. A Simple Example var LikeButton = React.createClass({ getInitialState: function() { return {liked: false}; }, handleClick: function(event) { this.setState({liked: !this.state.liked}); }, render: function() { var text = this.state.liked ? 'like' : 'haven\'t liked'; return ( <p onClick={this.handleClick}> You {text} this. Click to toggle.