jquery how to remove value from tags code example

Example 1: remove text element jquery

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>empty demo</title>
  <style>
  p {
    background: yellow;
  }
  </style>
  <script src="https://code.jquery.com/jquery-3.4.1.js"></script>
</head>
<body>
 
<p>
  Hello, <span>Person</span> <em>and person</em>.
</p>
 
<button>Call empty() on above paragraph</button>
 
<script>
$( "button" ).click(function() {
  $( "p" ).empty();
});
</script>
 
</body>
</html>

Example 2: delete div based on select

$('#record_nav ul li').on('click', function(e){
      $('#record_nav ul li.selected').removeClass('selected');
      $(this).addClass('selected');
      $('.content').hide();
      var id = $(this).data('target');
      $(id).show();
  });