Can I clean up this jQuery?

I have the following:

$('#EID').empty();
$('#EID').html(data);

Is it possible to simplify this with jQuery and do I really need the empty of the first line?

You don't need the empty no. Just the last line will do the trick.

 $('#EID').html(data);

If both lines are required for any reason, you could still simplify the code like this:

$('#EID')
  .empty()
  .html(data);