title: Is it possible watch the caret position in a textarea without polling?
body: <p>I would like a callback function to be executed each time the caret or selection moves in the text area.<br>
  Anybody knows how to do that?</p>
  
  <p><strong>Edit</strong>: I know how to retrieve the carret position. I'm interested in how to watch for the change. With my current knowledge i would test carret position on each <strong>keyup</strong> / <strong>mousemouve</strong> / <strong>mouseup</strong>. Is there a smarter (and more performant) way to do it. Are there event that may change the carret position that i did not think about ?</p>