server.coffee

http = require "http"
server = http.createServer (request, response) ->
    response.writeHead 200, 
        "Content-Type": "text/plain"

    response.write "Hello World"
    response.end()

server.listen 8888

server.js

// Generated by CoffeeScript 1.4.0
(function() {
  var http;

  http = require("http");

  http.createServer(function(request, response) {
    response.writeHead(200, {
      "Content-Type": "text/plain"
    });
    response.write("Hello World");
    return response.end;
  }).listen(8888);

}).call(this);