title: how to delete null values in array of json objects
body: <p>I have JSON object in following structure, </p>
  
  <pre><code>var i=[];
  
  i={"details":"personal", "about":[null,{"Name":"prudhvi","age":"26"},
  
                                         {"Name":"siva","age":"28"}
  
  ]
  
  }
  </code></pre>
  
  <p>In the following object, how to delete that null? Can you please give code for that.</p>
  
  <p>Thank you in advance...</p>