<!DOCTYPE html>
<html lang="id">
<head>
<meta charset="utf-8">
<title>JavaScript Event Change</title>
</head>
<body>
<select onchange="alert('Anda telah mengubah pilihan!');">
<option>Pilih</option>
<option>Pria</option>
<option>Wanita</option>
</select>
<p><strong>Catatan:</strong>Pilih opsi apa pun di kotak pilih untuk melihat cara kerjanya.</p>
</body>
</html>
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This Pen doesn't use any external JavaScript resources.