title: Find first TD with text in a TR with JQuery
body: <p>I am using JQuery to iterate through all TRs in a table,</p>
  
  <p>but not all rows have values in the first cell.</p>
  
  <pre><code>&lt;TR&gt;
    &lt;TD&gt;3&lt;/TD&gt;
    &lt;TD&gt;2&lt;/TD&gt;
    &lt;TD&gt;1&lt;/TD&gt;
  &lt;/TR&gt;
    &lt;TD&gt;&lt;/TD&gt;
    &lt;TD&gt;3&lt;/TD&gt;
    &lt;TD&gt;2&lt;/TD&gt;
  &lt;TR&gt;
  &lt;/TR&gt;
  &lt;TR&gt;
    &lt;TD&gt;&lt;/TD&gt;
    &lt;TD&gt;&lt;/TD&gt;
    &lt;TD&gt;3&lt;/TD&gt;
  &lt;/TR&gt;
  </code></pre>
  
  <p>How can i target the first TD in each row that is not empty and not just the first child?</p>
  
  <p>Thanks!</p>