HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>detach appendTo reinsert</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 520px; }
    #sidebar-container { border: 2px solid #6366f1; padding: 12px; border-radius: 8px; min-height: 60px; background: #eef2ff; }
    #sidebar-panel { background: #dbeafe; padding: 12px; border-radius: 6px; cursor: pointer; }
    button { margin-right: 8px; margin-top: 12px; padding: 8px 14px; border: none; border-radius: 6px; cursor: pointer; color: #fff; }
    #hide { background: #dc2626; }
    #show { background: #059669; }
    #log { margin-top: 10px; color: #64748b; font-size: 14px; }
  </style>
</head>
<body>
  <div id="sidebar-container">
    <div id="sidebar-panel">Click me — handler survives detach!</div>
  </div>
  <button type="button" id="hide">Detach panel</button>
  <button type="button" id="show">Reinsert with appendTo</button>
  <p id="log">Classic detach + appendTo workflow.</p>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    var panel = null;
    $("#sidebar-panel").on("click", function() {
      $("#log").text("Panel clicked — event handler still works after reinsert!");
    });
    $("#hide").on("click", function() {
      panel = $("#sidebar-panel").detach();
      $("#log").text("Panel detached from DOM — stored in variable.");
    });
    $("#show").on("click", function() {
      if (panel) {
        panel.appendTo("#sidebar-container");
        panel = null;
        $("#log").text("Panel reinserted via appendTo — click it to test handlers.");
      }
    });
  </script>
</body>
</html>

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jQuery .appendTo() — detach and reinsert (Try It)