diff --git a/server.js b/server.js
index ab0929d..90c6aa1 100644
--- a/server.js
+++ b/server.js
@@ -1,15 +1,13 @@
 'use strict';
 
-var express = require('express');
-var mongo = require('mongodb');
-var mongoose = require('mongoose');
-
-var cors = require('cors');
-
-var app = express();
+const express = require('express'),
+      mongo = require('mongodb'),
+      mongoose = require('mongoose'),
+      cors = require('cors'),
+      app = express();
 
 // Basic Configuration 
-var port = process.env.PORT || 3000;
+const port = process.env.PORT || 3000;
 
 /** this project needs a db !! **/ 
 // mongoose.connect(process.env.MONGOLAB_URI);
@@ -19,19 +17,19 @@ app.use(cors());
 /** this project needs to parse POST bodies **/
 // you should mount the body-parser here
 
-app.use('/public', express.static(process.cwd() + '/public'));
+app.use('/public', express.static(`${process.cwd()}/public`));
 
-app.get('/', function(req, res){
-  res.sendFile(process.cwd() + '/views/index.html');
+app.get('/', (req, res) => {
+  res.sendFile(`${process.cwd()}/views/index.html`);
 });
 
   
 // your first API endpoint... 
-app.get("/api/hello", function (req, res) {
+app.get("/api/hello", (req, res) => {
   res.json({greeting: 'hello API'});
 });
 
 
-app.listen(port, function () {
+app.listen(port, () => {
   console.log('Node.js listening ...');
-});
\ No newline at end of file
+});