title: Easiest way to reset Backbone's model to initial defaults?
body: <p>My models already have a <code>defaults</code> hash. When parts of the view/page are reset, I wish to reset the models back to their original defaults.</p>
  
  <p>Currently, I explicitly set each attribute to its default value. Is there anything built in or a JavaScript/Underscore.js/Backbone.js/jQuery function that I could use to do this in a single statement?</p>