title: In Underscore how to use each on a nested json object
body: <p>I have a json object </p>
  
  <pre><code>user = { name: "somename", personal : { age:"19",color:"dark"}}
  _.each(user,function(value){ if(isNaN(value){console.log(value)} )
  </code></pre>
  
  <p>How to get to the nested object value.</p>