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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>jQuery Add – append() with Callback</title> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script> <style> body { font-family: Arial, sans-serif; padding: 30px; background: #f4f4f4; } h2 { color: #222; } button { padding: 10px 20px; background: #007BFF; color: #fff; border: none; border-radius: 4px; cursor: pointer; margin-bottom: 20px; } .comment { padding: 10px; background: #fff; margin-bottom: 10px; border-left: 4px solid #007BFF; } </style> </head> <body> <h2>jQuery Add – append() Method with Callback</h2> <p>This example adds a new comment using a callback inside the <code>append()</code> method.</p> <button id="addComment">Add Comment</button> <div id="commentBox"> <div class="comment">This is the first comment</div> </div> <script> $(function(){ let count = 1; $("#addComment").click(function(){ $("#commentBox").append(function(){ count++; return `<div class="comment">New comment #${count}</div>`; }); }); }); </script> </body> </html>
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