HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>remove empty li</title>

  <style>

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

    li { margin: 4px 0; }

    #count { margin-top: 12px; padding: 12px; background: #dcfce7; border: 1px solid #22c55e; }

  </style>

</head>

<body>

  <ul id="tasks">

    <li>Buy milk</li>

    <li></li>

    <li>Walk dog</li>

    <li></li>

  </ul>

  <div id="count"></div>

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

  <script>

    var removed = $("#tasks li:empty").length;

    $("#tasks li:empty").remove();

    $("#count").text(removed + " empty item(s) removed. Remaining: " + $("#tasks li").length);

  </script>

</body>

</html>

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Remove empty list items (Try It)