react_backbone.js

var Foo = React.createClass({
    render : function() {
        return <div>foo</div>;
    },
});

var Bar = React.createClass({
    render : function() {
        return <div>bar</div>;
    },
});

var Router = Backbone.Router.extend({
    routes : {
        'foo': 'foo',
        'bar': 'bar',
    },

    foo: function() {
        this.changeView(<Foo />, document.body);
    },

    bar: function() {
        this.changeView(<Bar />, document.body);
    },

    changeView: function(component, node) {
        React.renderComponent(component, node);
    },
});