HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>undelegate all demo</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 480px; }
    #list { padding: 12px; border: 2px solid #3b82f6; border-radius: 8px; }
    li { padding: 6px; cursor: pointer; }
    button { margin-top: 10px; padding: 8px 14px; cursor: pointer; }
    #log { margin-top: 12px; color: #7c2d12; font-weight: bold; }
  </style>
</head>
<body>
  <ul id="list"><li>Item 1</li><li>Item 2</li></ul>
  <button type="button" id="off-all">$("#list").undelegate()</button>
  <div id="log">#list delegates click on li until you undelegate all.</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("#list").delegate("li", "click", function() { $("#log").text("Delegated click on: " + $(this).text()); });
    $("#list").delegate("li", "mouseenter", function() { $("#log").text("Delegated mouseenter on: " + $(this).text()); });
    $("#off-all").on("click", function() {
      $("#list").undelegate();
      $("#log").text("All delegated handlers removed from #list.");
    });
  </script>
</body>
</html>

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jQuery .undelegate() — remove all delegated (Try It)