Remove unused variables

app.js

@@ -27,7 +27,7 @@ app.use(session({
   secret: 'secret',
   resave: false,
   saveUninitialized: true
-}))
+}));
 app.use(express.static(path.join(__dirname, 'public')));
 
 // res.locals is an object passed to hbs engine
@@ -39,14 +39,14 @@ app.use(function(req, res, next) {
 app.use('/', index);
 
 // catch 404 and forward to error handler
-app.use(function(req, res, next) {
+app.use(function(_req, _res, next) {
   var err = new Error('Not Found');
   err.status = 404;
   next(err);
 });
 
 // error handler
-app.use(function(err, req, res, next) {
+app.use(function(err, req, res, _next) {
   // set locals, only providing error in development
   res.locals.message = err.message;
   res.locals.error = req.app.get('env') === 'development' ? err : {};

public/stylesheets/style.css

@@ -16,10 +16,12 @@ a {
 .dropdown-menu .cart {
   min-width: 250px;
   padding: 15px 25px 0;
+  margin: 0;
 }
 
 .dropdown-menu .cart .row > div {
   padding: 0 0 10px 0;
+  margin: 0;
 }
 
 .dropdown-menu .cart .totalPrice{

routes/index.js

@@ -6,9 +6,7 @@ var fs = require('fs');
 var Cart = require('../models/cart');
 var products = JSON.parse(fs.readFileSync('./data/products.json', 'utf8'));
 
-router.get('/', function (req, res, next) {
-  var productId = products && products[0].id;
-
+router.get('/', function (_req, res, _next) {
   res.render('index', 
   { 
     title: 'NodeJS Shopping Cart',
@@ -17,20 +15,20 @@ router.get('/', function (req, res, next) {
   );
 });
 
-router.get('/add/:id', function(req, res, next) {
+router.get('/add/:id', function(req, res, _next) {
 
   var productId = req.params.id;
   var cart = new Cart(req.session.cart ? req.session.cart : {});
   var product = products.filter(function(item) {
-    return item.id == productId;
+    return item.id === productId;
   });
   cart.add(product[0], productId);
   req.session.cart = cart;
   res.redirect('/');
   inline();
 });
 
-router.get('/cart', function(req, res, next) {
+router.get('/cart', function(req, res, _next) {
   if (!req.session.cart) {
     return res.render('cart', {
       products: null
@@ -44,7 +42,7 @@ router.get('/cart', function(req, res, next) {
   });
 });
 
-router.get('/remove/:id', function(req, res, next) {
+router.get('/remove/:id', function(req, res, _next) {
   var productId = req.params.id;
   var cart = new Cart(req.session.cart ? req.session.cart : {});