// Without RORO :(
function externalServiceClient(user, host, database, password, port) {
  // Making connection to the service
  return connection;
}
// A bit confusing to use... unless your IDE provide the signature !
externalServiceClient("user", "host", "db", "pass", 1234);

// With RORO :)
function externalServiceClient({user, host, database, password, port}) {
  // Making connection to the service
  return {
    connection: connection,
    status: status
  };
}
// Explicit parameters naming \o/
const connection, status = externalServiceClient({
	user: "user",
	host: "host",
	database: "db",
	password: "pass",
	port: 1234
});