var -> let

app.js

@@ -1,15 +1,15 @@
-var express = require('express');
-var path = require('path');
-var favicon = require('serve-favicon');
-var logger = require('morgan');
-var cookieParser = require('cookie-parser');
-var bodyParser = require('body-parser');
-var hbs = require('hbs');
-var session = require('express-session');
-
-var index = require('./routes/index');
-
-var app = express();
+let express = require('express');
+let path = require('path');
+let favicon = require('serve-favicon');
+let logger = require('morgan');
+let cookieParser = require('cookie-parser');
+let bodyParser = require('body-parser');
+let hbs = require('hbs');
+let session = require('express-session');
+
+let index = require('./routes/index');
+
+let app = express();
 
 // view engine setup
 app.set('views', path.join(__dirname, 'views'));