gistfile1.js

// Tested on Node version 0.1.32 and 0.1.33

var http = require('http'),
    sys  = require('sys');

http.createServer(function (request, response) {
  
  response.writeHead(200, {'content-type': 'text/plain'});
  response.write("Hello");
  
  setTimeout(function () {
    response.write("World")
    response.close();
  }, 2000);
  
}).listen(8000);

sys.puts("Listening on http://127.0.0.1:8000/");