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Result Size: 625 x 565
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<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("#btn1").click(function(){
    $("#test1").text(function(i, origText){
      return "Old text: " + origText + " New text: Hello world! (index: " + i + ")"; 
    });
  });
​
  $("#btn2").click(function(){
    $("#test2").html(function(i, origText){
      return "Old html: " + origText + " New html: Hello <b>world!</b> (index: " + i + ")"; 
    });
  });
});
</script>
</head>
<body>
​
<p id="test1">This is a <b>bold</b> paragraph.</p>
<p id="test2">This is another <b>bold</b> paragraph.</p>
​
<button id="btn1">Show Old/New Text</button>
<button id="btn2">Show Old/New HTML</button>
​
</body>
​
</html>
​
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