HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery.proxy() — context</title>
</head>
<body>
  <button id="test" type="button">Test</button>
  <pre id="out"></pre>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    (function () {
      var lines = [];
      var me = {
        type: "zombie",
        test: function () {
          lines.push("me: " + this.type);
        }
      };
      var you = {
        type: "person",
        test: function () {
          lines.push("you: " + this.type);
        }
      };
      var youClick = $.proxy(you.test, you);
      you.test.call({ type: "element" });
      youClick.call({ type: "element" });
      $.proxy(me.test, me).call({});
      document.getElementById("out").textContent = lines.join("\n");
    })();
  </script>
</body>
</html>

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jQuery.proxy() — function + context (Try It)