HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>proxy function context</title>
  <style>
    body { font-family: sans-serif; padding: 16px; }
    button { padding: 10px 18px; cursor: pointer; font-size: 1rem; }
    #log { margin-top: 14px; color: #1e40af; font-weight: bold; min-height: 2em; }
  </style>
</head>
<body>
  <button type="button" id="test">Test</button>
  <div id="log">Click the button — four handlers fire with different this values.</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    var me = {
      type: "zombie",
      test: function(event) {
        $(event.target).css("background-color", "#fecaca");
        $("#log").append("Hello " + this.type + " ");
        $("#test").off("click", this.test);
      }
    };
    var you = {
      type: "person",
      test: function() {
        $("#log").append(this.type + " ");
      }
    };
    var youClick = $.proxy(you.test, you);
    $("#test")
      .on("click", $.proxy(me.test, me))
      .on("click", youClick)
      .on("click", $.proxy(you.test, me))
      .on("click", you.test);
  </script>
</body>
</html>

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