code: function create(text) {
    // Hand waving here -- not showing how this interacts with XHR or persistent
    // server-side storage.
    // Using the current timestamp + random number in place of a real id.
    var id = (+new Date() + Math.floor(Math.random() * 999999)).toString(36);
    _todos[id] = {
      id: id,
      complete: false,
      text: text
    };
  }
docs: Create a TODO item.
  @param  {string} text The content of the TODO