react

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Published: Mar 2, 2014 License: Apache-2.0, Apache-2.0 Imports: 1 Imported by: 0

README

React Build Status

React is a JavaScript library for building user interfaces.

  • Just the UI: Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
  • Virtual DOM: React uses a virtual DOM diff implementation for ultra-high performance. It can also render on the server using Node.js — no heavy browser DOM required.
  • Data flow: React implements one-way reactive data flow which reduces boilerplate and is easier to reason about than traditional data binding.

Learn how to use React in your own project.

The react npm package has recently changed!

If you're looking for jeffbski's React.js project, it's now in npm as reactjs rather than react.

Examples

We have several examples on the website. Here is the first one to get you started:

/** @jsx React.DOM */
var HelloMessage = React.createClass({
  render: function() {
    return <div>Hello {this.props.name}</div>;
  }
});

React.renderComponent(
  <HelloMessage name="John" />,
  document.getElementById('container')
);

This example will render "Hello John" into a container on the page.

You'll notice that we used an XML-like syntax; we call it JSX. JSX is not required to use React, but it makes code more readable, and writing it feels like writing HTML. A simple transform is included with React that allows converting JSX into native JavaScript for browsers to digest.

Installation

The fastest way to get started is to serve JavaScript from the CDN (also available on CDNJS):

<!-- The core React library -->
<script src="http://fb.me/react-0.8.0.js"></script>
<!-- In-browser JSX transformer, remove when pre-compiling JSX. -->
<script src="http://fb.me/JSXTransformer-0.8.0.js"></script>

We've also built a starter kit which might be useful if this is your first time using React. It includes a webpage with an example of using React with live code.

If you'd like to use bower, it's as easy as:

bower install --save react

Contribute

The main purpose of this repository is to continue to evolve React core, making it faster and easier to use. If you're interested in helping with that, then keep reading. If you're not interested in helping right now that's ok too. :) Any feedback you have about using React would be greatly appreciated.

Building Your Copy of React

The process to build react.js is built entirely on top of node.js, using many libraries you may already be familiar with.

Prerequisites
  • You have node installed at v0.10.0+ (it might work at lower versions, we just haven't tested).
  • You are familiar with npm and know whether or not you need to use sudo when installing packages globally.
  • You are familiar with git.
Build

Once you have the repository cloned, building a copy of react.js is really easy.

# grunt-cli is needed by grunt; you might have this installed already
npm install -g grunt-cli
npm install
grunt build

At this point, you should now have a build/ directory populated with everything you need to use React. The examples should all work.

Grunt

We use grunt to automate many tasks. Run grunt -h to see a mostly complete listing. The important ones to know:

# Build and run tests with PhantomJS
grunt test
# Lint the code with JSHint
grunt lint
# Wipe out build directory
grunt clean
More…

There's only so much we can cram in here. To read more about the community and guidelines for submitting pull requests, please read the Contributing document.

Documentation

Overview

Package react provides access to the React JavaScript libraries and embeds them into the Go binary when compiled with the genfileembed tool.

See http://facebook.github.io/react/

#fileembed pattern .*\.js$

Index

Constants

This section is empty.

Variables

View Source
var Files = &fileembed.Files{}

Functions

This section is empty.

Types

This section is empty.

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