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<!DOCTYPE html>
<html>
<head>
<script src="../../ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("li").removeClass(function(n) {
      if (n == 0 || n == 1) {return "listitem"}
      else {return ""}
    });
  });
});
</script>
<style>
.listitem {
  color: red;
}
</style>
</head>
<body>
​
<h1>This is a heading</h1>
​
<ul>
  <li class="listitem">Peter</li>
  <li class="listitem">Lois</li>
  <li class="listitem">Chris</li>
  <li class="listitem">Stewie</li>
</ul>
​
<button>Remove class "listitem" from the li elements with index 0 and 1</button>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jquery/tryit.asp?filename=tryjquery_html_removeclass_func by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:33:35 GMT -->
</html>
​
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