Example of using co and React.

co-react.js

const Promise = require('bluebird');
const co = require('co');
const React = require('react');

function* sleep(ms) {
  yield Promise.delay(ms);
}

function usersView(users) {
  const lis = users.map(u => <li>{u.name}</li>);
  return <ul>{lis}</ul>;
}

const UsersComponent = React.createClass({

  getInitialState() {
    return { users: [] }
  },

  componentDidMount() {
    co(function*() {
      while (true) {
        const users = yield $.ajax("/home/api");
        this.setState({users: users});
        yield sleep(2000);
      }
    }.bind(this)).catch(e => console.log("hmm", e));
  },

  render() {
    return usersView(this.state.users);
  }

});