Merge pull request #8 from Azure-Samples/johnpapa-patch-1

const and fat arrows

Author: mmacy

server.js

@@ -1,13 +1,13 @@
-var http = require('http')
+const http = require('http')
 
-var port = 80
+const port = 80
 
-var server = http.createServer(function (request, response) {
+const server = http.createServer((request, response) => {
   response.writeHead(200, {'Content-Type': 'text/plain'})
   response.write('Hello World\n')
   response.end('Version: ' + process.env.NODE_VERSION + '\n')
 })
 
 server.listen(port)
 
-console.log('Server running at http://localhost:' + port)
+console.log(`Server running at http://localhost: ${port}`)