HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>Switch on event.type</title>

  <style>

    body { font-family: sans-serif; padding: 16px; max-width: 28rem; }

    #app { padding: 16px; border: 2px solid #cbd5e1; border-radius: 8px; }

    input, button { display: block; margin-top: 8px; padding: 8px; }

    #log { margin-top: 12px; padding: 12px; background: #f1f5f9; border-radius: 6px; }

  </style>

</head>

<body>

  <div id="app">

    <p>Click here, submit the form, or type in the input.</p>

    <form><input type="text" placeholder="Type and press Enter"><button type="submit">Submit</button></form>

  </div>

  <div id="log">Try click, submit, or keydown.</div>

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

  <script>

    $("#app").on("click submit keydown", function (event) {

      switch (event.type) {

        case "click":

          $("#log").text("Click inside #app");

          break;

        case "submit":

          event.preventDefault();

          $("#log").text("Form submitted");

          break;

        case "keydown":

          $("#log").text("Key: " + event.type);

          break;

      }

    });

  </script>

</body>

</html>

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jQuery event.type — switch on delegated events (Try It)