React.js (ReactJS) Page and Layout components. For a complete sample visit https://github.com/kriasoft/react-starter-kit and http://reactjs.kriasoft.com (demo)

README.md

Page is URL-bound React component. For example, the /questions/votes URL on StackOverflow is bound to the <Questions sort="votes" /> component.

Layout is a wrapper for Page component, which itself can be wrapped in other layouts (for more complex pages). Layout usually contains header, footer, navigation, sidebar and other similar components as well as {this.props.children}.

It's is better to define the type of the layout to use on a Page lavel as opposed to somwhere else (e.g. in routing). Also at a page level you want to define page title either as a property or a state variable which is then passed to the layout component (or asynchronously via Flux's action creator).

With the layout approach # 1 (PageOne.jsx) the page can be rendered like this:

var React = require('react');
var copyProperties = require('react/lib/copyProperties');

/**
 * Check if Page component has a layout property; and if yes, wrap the page
 * into the specified layout, then mount to document.body.
 */
function render(page) {
  var child, props = {};
  while (page.defaultProps.layout) {
    child = page(props, child);
    copyProperties(props, page.defaultProps);
    page = page.defaultProps.layout;
  }
  React.renderComponent(page(props, child), document.body);
}

render(require('./pages/profile.jsx'));

DefaultLayout.jsx

/**
 * Page layout, reused across multiple Page components
 * @jsx React.DOM
 */

var React = require('react');
var ExecutionEnvironment = require('react/lib/ExecutionEnvironment');
var Navigation = require('../components/Navigation.jsx');

var DefaultLayout = React.createClass({
  propTypes: {
    title: React.PropTypes.string
  },
  render() {
    return (
      <div>
        <div className="l-header">
          <h1>Company Name</h1>
          <Navigation />
        </dv>
        <div className="l-content">
          <h1>{this.props.title}</h1>
          {this.props.children}
        </div>
        <div className="l-footer">
          <p>Copyright (c) 2014 Company Name</p>
        </div>
      </div>
    );
  },
  componentDidMount() {
    if (ExecutionEnvironment.canUseDOM) {
      document.title = this.props.title;
    }
  }
});

module.exports = DefaultLayout;

PageOne.jsx

/**
 * Layout approach #1
 * @jsx React.DOM
 */

var React = require('react');
var DefaultLayout = require('../layouts/DefaultLayout.jsx');

var PageOne = React.createClass({
  getDefaultProps() {
    return {
      title: 'Page One',
      layout: DefaultLayout
    };
  },
  render() {
    return (
      <div>
        <p>The page's content...</p>
        <p>goes here.</p>
      </div>
    );
  }
});

PageTwo.jsx

/**
 * Layout approach #2
 * @jsx React.DOM
 */

var React = require('react');
var DefaultLayout = require('../layouts/DefaultLayout.jsx');

var PageOne = React.createClass({
  getDefaultProps() {
    return {
      title: 'Page Two'
    };
  },
  render() {
    return (
      <DefaultLayout title={this.props.title}>
        <p>The page's content...</p>
        <p>goes here.</p>
      </DefaultLayout>
    );
  }
});

Where are you putting that function render(page) code. Do you have that in a .js file somewhere? And what is this child param for page()? where is that coming from and what are you doing with that when you pass it into the component as a param?

^ I had the same question, I just want a custom title for each page T.T

Can you provide me the complete source code for this layout example.