title: jQuery - Object + nth-child
body: <p>Trying to get the first cell in a row by using first-child or nth-child, but the syntax isn't playing nice. This is what I'm trying and it isn't working:</p>
  
  <pre><code>....
  sections[key][2][sections[key][2].length-1] //Table Row
  $(sections[key][2][sections[key][2].length-1]+":first-child") //Should be first cell of row
  ....
  </code></pre>
  
  <p>Instead it returns the entire document...</p>