parse static method
Implementation
static FacebookProfileIdUrl? parse(String url) {
var matches = RegExp(
r'(?:https?:)?\/\/(?:www\.)facebook.com/(?:profile.php\?id=)?(?<id>[0-9]+)')
.allMatches(url);
var id = matches.getValue("id");
if (id == null) return null;
return FacebookProfileIdUrl._(id);
}