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<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>remove one handler</title>

</head>

<body>

  <h1>Remove one handler</h1>

  <pre id="out"></pre>

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

  <script>

    (function () {

      var lines = [];

      var callbacks = $.Callbacks();



      function foo() { lines.push("Foo"); }

      function bar() { lines.push("Bar"); }



      callbacks.add(foo);

      callbacks.add(bar);

      callbacks.fire();

      callbacks.remove(foo);

      callbacks.fire();



      document.getElementById("out").textContent = lines.join("\n");

    })();

  </script>

</body>

</html>

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jQuery callbacks.remove() — remove one handler (Try It)