title: How can I handle ArrowKeys and < (Greater Than) in a Javascript function? Which event and which code (charCode Or keyCode)?
body: <p>How can I handle ArrowKeys and <code>&lt;</code> (Greater Than) in a Javascript function? Which event and which code (charCode Or keyCode)?</p>
  
  <p>I am very confused how to do this. I have read this link very carefully, 
  <a href="http://www.quirksmode.org/js/keys.html" rel="nofollow noreferrer">Events and keyCode+charCode</a>, but I could not find any solution for my scenario.</p>