diff --git a/app/static/app.js b/app/static/app.js
index 62944fe3..7587ab62 100644
--- a/app/static/app.js
+++ b/app/static/app.js
@@ -1,16 +1,16 @@
 // Create local scope
 (function() {
   //Init Aplication
-  var app = {
-    init: function() {
+  const app = {
+    init() {
       routers.init();
     },
     rootElement: document.body
   };
 
   // Handle routes and states
-  var routers = {
-    init: function() {
+  const routers = {
+    init() {
       // Check if the window already has a hash and change active sections corspodending the hash
       if (window.location.hash) {
         sections.toggle(location.hash.substr(1));
@@ -18,25 +18,25 @@
 
       // Listing to hashchange
       window.addEventListener("hashchange",function(){
-        var route = location.hash.substr(1);
+        let route = location.hash.substr(1);
         sections.toggle(route);
       });
     }
-  }
+  };
 
   // Render / toggle sections
-  var sections = {
+  const sections = {
     sections: app.rootElement.querySelectorAll("body>section"),
-    toggle: function(route) {
-      for (let i = 0; i < this.sections.length; i++) {
-        this.sections[i].classList.remove("active");
+    toggle(route) {
+      this.sections.forEach(function(el) {
+        el.classList.remove("active");
         // Checking if the id is the same as the route
-        if (this.sections[i].id == route) {
-          this.sections[i].classList.add("active");
+        if (el.id === route) {
+           el.classList.add("active");
         }
-      }
+      });
     }
-  }
+  };
 
   // Start the Aplication
   app.init();