diff --git a/templates/js/app.js.ejs b/templates/js/app.js.ejs
index 2ef75aec..192cccd1 100644
--- a/templates/js/app.js.ejs
+++ b/templates/js/app.js.ejs
@@ -1,51 +1,83 @@
-<% if (view) { -%>
-var createError = require('http-errors');
-<% } -%>
-var express = require('express');
-var path = require('path');
-<% Object.keys(modules).sort().forEach(function (variable) { -%>
-var <%- variable %> = require('<%- modules[variable] %>');
-<% }); -%>
-
-<% Object.keys(localModules).sort().forEach(function (variable) { -%>
-var <%- variable %> = require('<%- localModules[variable] %>');
-<% }); -%>
-
-var app = express();
-
-<% if (view) { -%>
-// view engine setup
-<% if (view.render) { -%>
-app.engine('<%- view.engine %>', <%- view.render %>);
-<% } -%>
-app.set('views', path.join(__dirname, 'views'));
-app.set('view engine', '<%- view.engine %>');
-
-<% } -%>
-<% uses.forEach(function (use) { -%>
-app.use(<%- use %>);
-<% }); -%>
-
-<% mounts.forEach(function (mount) { -%>
-app.use(<%= mount.path %>, <%- mount.code %>);
-<% }); -%>
-
-<% if (view) { -%>
-// catch 404 and forward to error handler
-app.use(function(req, res, next) {
-  next(createError(404));
-});
-
-// error handler
-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 : {};
-
-  // render the error page
-  res.status(err.status || 500);
-  res.render('error');
-});
-
-<% } -%>
-module.exports = app;
+< %
+if (view) {
+  - % >
+  const createError = require('http-errors'); <
+  %
+} - % >
+const express = require('express');
+const path = require('path'); <
+%
+Object.keys(modules).sort().forEach(variable => {
+  - % >
+  const < % -variable % > = require('<%- modules[variable] %>'); <
+  %
+}); - % >
+
+<
+%
+Object.keys(localModules).sort().forEach(variable => {
+  - % >
+  const < % -variable % > = require('<%- localModules[variable] %>'); <
+  %
+}); - % >
+
+const app = express();
+
+<
+%
+if (view) {
+  - % >
+  // view engine setup
+  <
+  %
+  if (view.render) {
+    - % >
+    app.engine('<%- view.engine %>', < % -view.render % > ); <
+    %
+  } - % >
+  app.set('views', path.join(__dirname, 'views'));
+  app.set('view engine', '<%- view.engine %>');
+
+  <
+  %
+} - % >
+<
+%
+uses.forEach(use => {
+  - % >
+  app.use( < % -use % > ); <
+  %
+}); - % >
+
+<
+%
+mounts.forEach(mount => {
+  - % >
+  app.use( < %= mount.path % > , < % -mount.code % > ); <
+  %
+}); - % >
+
+<
+%
+if (view) {
+  - % >
+  // catch 404 and forward to error handler
+  app.use((req, res, next) => {
+    next(createError(404));
+  });
+
+  // error handler
+  app.use((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 : {};
+
+    // render the error page
+    res.status(err.status || 500);
+    res.render('error');
+  });
+
+  <
+  %
+} - % >
+module.exports = app;
\ No newline at end of file
diff --git a/templates/js/routes/index.js b/templates/js/routes/index.js
index ecca96a5..23abd95c 100644
--- a/templates/js/routes/index.js
+++ b/templates/js/routes/index.js
@@ -1,9 +1,11 @@
-var express = require('express');
-var router = express.Router();
+const express = require('express');
+const router = express.Router();
 
 /* GET home page. */
-router.get('/', function(req, res, next) {
-  res.render('index', { title: 'Express' });
+router.get('/', (req, res, next) => {
+  res.render('index', {
+    title: 'Express'
+  });
 });
 
-module.exports = router;
+module.exports = router;
\ No newline at end of file
diff --git a/templates/js/routes/users.js b/templates/js/routes/users.js
index 623e4302..76b380cf 100644
--- a/templates/js/routes/users.js
+++ b/templates/js/routes/users.js
@@ -1,9 +1,9 @@
-var express = require('express');
-var router = express.Router();
+const express = require('express');
+const router = express.Router();
 
 /* GET users listing. */
-router.get('/', function(req, res, next) {
+router.get('/', (req, res, next) => {
   res.send('respond with a resource');
 });
 
-module.exports = router;
+module.exports = router;
\ No newline at end of file