HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>input vs input tag</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 28rem; }
    form > * { display: block; margin: 6px 0; }
    #output { margin-top: 12px; padding: 12px; background: #fef3c7; font-family: monospace; white-space: pre-wrap; }
  </style>
</head>
<body>
  <form>
    <input type="text" placeholder="Name">
    <input type="checkbox">
    <textarea rows="2"></textarea>
    <select><option>A</option><option>B</option></select>
    <button type="button">OK</button>
  </form>
  <div id="output"></div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("#output").text(
      ":input → " + $("form :input").length + "\ninput tag → " + $("form input").length
    );
  </script>
</body>
</html>

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:input vs input tag (Try It)