my 13 LOC chat server for node.js

gistfile1.js

var http = require('http');
var url  = require('url');
var messages = ["welcome to nodeChat"];
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  var query = url.parse(req.url, true).query;
  if ( query.message ){
    messages.push( query.message );
    res.end("thanks");
  } else {
    res.end(messages.slice(query.since).join("\n"));
  }
}).listen(1337, "127.0.0.1");