<script type="text/javascript"> var executar = function() { var caractere = "\ Octal:.....................\251, \256, \266 \n\ Latin 1 Hexadecimal:....\xA9, \xAE, \xB6 \n\ Latin 1 Unicode:.........\u00A9, \u00AE, \u00B6" alert(caractere); } </script>
<button type="button" onclick="executar()">Mostrar caracteres</button>