Action creators are functions that create actions. When the process of creating the action is synchronous, the action creator will return the action object. However, when the process of creating the action is asynchronous, the action creator will return a function that dispatches the action. Asynchronous actions can also dispatch more than one action. 

In this section, we will create two asynchronous action creators for getting unanswered questions and posting a question. We will also create an asynchronous action creator for clearing the posted question result.