HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>chained .submit()</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 440px; }
    label { display: block; margin-bottom: 6px; font-weight: 600; }
    textarea { width: 100%; padding: 10px 12px; border: 2px solid #cbd5e1; border-radius: 6px; font-size: 16px; box-sizing: border-box; min-height: 80px; margin-bottom: 12px; }
    button { padding: 10px 16px; background: #6366f1; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
    #notice { margin-top: 10px; padding: 10px; background: #f0fdf4; border-radius: 6px; color: #166534; font-size: 14px; display: none; }
    #result { margin-top: 8px; font-family: monospace; color: #4338ca; font-size: 14px; min-height: 1.2em; }
  </style>
</head>
<body>
  <form id="contact">
    <label for="msg">Message</label>
    <textarea id="msg" name="message">Hello from chained handlers.</textarea>
    <button type="submit">Send</button>
  </form>
  <div id="notice"></div>
  <div id="result"></div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("#contact")
      .submit(function(event) {
        event.preventDefault();
        $("#notice").text("First handler: blocked default submit.").show();
      })
      .submit(function(event) {
        $("#result").text("Second handler: serialized " + $(this).serialize());
      });
  </script>
</body>
</html>

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jQuery chained .submit(handler) — validation + AJAX (Try It)