HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Custom event result pipeline</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 28rem; }
    #widget { padding: 12px; background: #e0f2fe; border-radius: 6px; margin-bottom: 8px; }
    button { padding: 8px 16px; }
    #log { margin-top: 12px; padding: 12px; background: #f1f5f9; border-radius: 6px; font-family: monospace; font-size: 13px; }
  </style>
</head>
<body>
  <div id="widget">Widget</div>
  <button type="button" id="go">Trigger beforeSave</button>
  <div id="log">Click trigger.</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("#widget").on("beforeSave", function () {
      return { step: 1, msg: "validated" };
    });
    $("#widget").on("beforeSave", function (event) {
      var prev = event.result || {};
      return { step: prev.step + 1, msg: prev.msg + ", enriched" };
    });
    $("#widget").on("beforeSave", function (event) {
      $("#log").text(JSON.stringify(event.result));
    });
    $("#go").on("click", function () {
      $("#widget").trigger("beforeSave");
    });
  </script>
</body>
</html>

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jQuery event.result — custom event pipeline (Try It)