HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>DOM context fireWith</title>

</head>

<body>

  <h1>Element as context</h1>

  <button id="save">Save</button>

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

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

  <script>

    (function () {

      var lines = [];

      var onClick = $.Callbacks();

      var btn = document.getElementById("save");



      onClick.add(function (eventType) {

        lines.push(

          "Handler on <" + this.tagName + "> id=" + this.id + ": " + eventType

        );

      });



      onClick.fireWith(btn, ["click"]);

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

    })();

  </script>

</body>

</html>

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jQuery callbacks.fireWith() — DOM context (Try It)