HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>removeData bulk demo</title>

  <style>

    body { font-family: sans-serif; padding: 16px; max-width: 480px; }

    #cart { background: #e0e7ff; padding: 12px; border-radius: 6px; margin: 10px 0; }

    pre { background: #f1f5f9; padding: 10px; border-radius: 6px; font-size: 13px; }

    button { margin-top: 8px; padding: 10px 16px; background: #7c3aed; color: #fff; border: none; border-radius: 6px; cursor: pointer; margin-right: 8px; }

    #hint { color: #64748b; font-size: 14px; margin-top: 10px; }

  </style>

</head>

<body>

  <div id="cart">Shopping cart</div>

  <button type="button" id="fill">Set cart data</button>

  <button type="button" id="bulk">removeData(["items","total"])</button>

  <pre id="out">Click "Set cart data" first.</pre>

  <p id="hint">Bulk removal deletes listed keys only.</p>

  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>

  <script>

    function show() {

      var $c = $("#cart");

      $("#out").text(

        "items=" + $c.data("items") + "\n" +

        "total=" + $c.data("total") + "\n" +

        "currency=" + $c.data("currency") + "\n" +

        "session=" + $c.data("session")

      );

    }

    $("#fill").on("click", function() {

      $("#cart").data("items", 4).data("total", 59.99).data("currency", "USD").data("session", "abc123");

      show();

      $("#hint").text("Four keys stored.");

    });

    $("#bulk").on("click", function() {

      $("#cart").removeData(["items", "total"]);

      show();

      $("#hint").text("items and total removed; currency and session remain.");

    });

  </script>

</body>

</html>

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jQuery .removeData() — bulk keys (Try It)