var http = require("http");

function onRequest(request, response) {
	console.log("Request received.");
	response.writeHead(200, {"Content-Type": "text/plain"});
	response.write("Hello World");
	response.end();
}

http.createServer(onRequest).listen(8888);

console.log("Server has started.");

var http = require("http");

function start() {
	function onRequest(request, response) {
		console.log("Request received.");
		response.writeHead(200, {"Content-Type": "text/plain"});
		response.write("Hello World");
		response.end();
	}

	http.createServer(onRequest).listen(8888);
	console.log("Server has started.");
}

exports.start = start;

Package the script with a `start` function
Package the script with a `start` function