HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>detach toggle demo</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 480px; }
    p { background: #fef08a; margin: 6px 0; padding: 8px 10px; cursor: pointer; border-radius: 4px; }
    p.off { background: #1e293b; color: #fff; }
    button { margin-top: 12px; padding: 10px 16px; background: #6366f1; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
    #hint { color: #64748b; font-size: 14px; margin-top: 10px; }
  </style>
</head>
<body>
  <p>Hello</p>
  <p>how are</p>
  <p>you?</p>
  <button type="button">Attach/detach paragraphs</button>
  <p id="hint">Click a paragraph to toggle class. Button detaches or reinserts all p elements.</p>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("p").not("#hint").click(function() {
      $(this).toggleClass("off");
    });
    var p;
    $("button").click(function() {
      if (p) {
        p.appendTo("body");
        p = null;
        $("#hint").text("Paragraphs reinserted — click handlers still work.");
      } else {
        p = $("p").not("#hint").detach();
        $("#hint").text("Paragraphs detached from DOM — stored in variable p.");
      }
    });
  </script>
</body>
</html>

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jQuery .detach() — official toggle demo (Try It)