Flux TodoApp Sample 7

TodoStore2.js

// TodoStore emits a 'change' event after handling the action.
// ...
// Register to handle all updates
AppDispatcher.register(function(payload) {
  var action = payload.action;
  var text;
 
  switch(action.actionType) {
    case TodoConstants.TODO_CREATE:
      text = action.text.trim();
      if (text !== '') {
        create(text);
      }
      break;
// ...
 
    default:
      return true;
  }
 
  // This often goes in each case that should trigger a UI change. This store
  // needs to trigger a UI change after every view action, so we can make the
  // code less repetitive by putting it here.  We need the default case,
  // however, to make sure this only gets called after one of the cases above.
  TodoStore.emitChange();
 
  return true; // No errors.  Needed by promise in Dispatcher.
});
// ...