title: How to get the value of the lang attribute with jQuery?
body: <p>Suppose I have an HTML document that looks like this:</p>
  
  <pre><code>&lt;html lang="en"&gt;
  ...
  &lt;/html&gt;
  </code></pre>
  
  <p>My question is: how to get the value of the attribute <code>lang</code> with jQuery?<br>
  I've tried <code>$("html").attr("lang")</code> but it did not work... any suggestions?</p>