title: get property from data variable in ajax jQuery
body: <p>I try to get value of the variable what lay in response object(<code>data</code>  variable). Here is what I get when <code>console.log</code> whole <code>data</code>:</p>
  
  <pre><code> {"comment_id":7,"view": ......
  </code></pre>
  
  <p>But when I try this to get  <code>comment_id</code> I getting <code>undefined</code>:</p>
  
  <pre><code>console.log(data['comment_id']); // undefined
  console.log(data.comment_id); // undefined
  </code></pre>
  
  <p>What I am doing wrong?</p>