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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery.error — basic</title>
  <style>
    body { font-family: sans-serif; padding: 16px; max-width: 440px; }
    button { padding: 10px 14px; background: #dc2626; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
    #out { margin-top: 12px; padding: 12px; background: #fef2f2; border: 1px solid #fecaca; border-radius: 8px; white-space: pre-wrap; }
  </style>
</head>
<body>
  <button type="button" id="go">Call jQuery.error()</button>
  <div id="out">Click to throw (caught for the demo).</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $( "#go" ).on( "click", function () {
      try {
        jQuery.error( "Something went wrong in the plugin" );
      } catch ( err ) {
        $( "#out" ).text( "Caught: " + err.message );
      }
    });
  </script>
</body>
</html>

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jQuery.error() — basic throw (Try It)