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<!DOCTYPE html>
<html>
<head>
<script src="../../ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("#w3s").attr("href", function(i, origValue){
      return origValue + "/jquery/"; 
    });
  }); 
});
</script>
</head>
<body>
​
<p><a href="../index.html" id="w3s">W3Schools.com</a></p>
​
<button>Change href Value</button>
​
<p>Mouse over the link (or click on it) to see that the value of the href attribute has changed.</p>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jquery/tryit.asp?filename=tryjquery_dom_attr_callback by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:28:22 GMT -->
</html>
​
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