CodePen Embed - tipe_data

<!DOCTYPE html>
<html lang="id">
<head>
    <meta charset="utf-8">
    <title>JavaScript NaN</title>
</head>
<body>
    <script>
    document.write("Some text" / 2);
    document.write("<br>");
    document.write("Some text" / 2 + 10);
    document.write("<br>");
    document.write(Math.sqrt(-1));
    </script>
</body>
</html>

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