bloatless
diff --git a/‎client/index.html
-5 b/‎client/index.html
-5
diff --git a/‎client/js/client.js
+31-9 b/‎client/js/client.js
+31-9
@@ -2,13 +2,8 @@
 <html>
 <head>
 	<link rel="stylesheet" href="css/client.css">
-	
-    <script src="js/jquery.min.js"></script>
-	<script src="js/json2.js"></script>
 	<script src="js/client.js"></script>
-    
 	<meta charset=utf-8 />
-
 	<title>Shiny WSS Demo Application</title>
 </head>
 <body>
 
@@ -1,16 +1,21 @@
 (function() {
-    document.addEventListener("DOMContentLoaded", function() {
+    document.addEventListener("DOMContentLoaded", () => {
 
         const elLog = document.getElementById('log');
         const elStatus = document.getElementById('status');
         const elSend = document.getElementById('send');
         const elAction = document.getElementById('action');
         const elData = document.getElementById('data');
 
+        /**
+         * Add a new log message.
+         * @param {string} msg - The message to add.
+         */
         const log = (msg) => {
-            return elLog.insertAdjacentHTML('afterbegin', `${msg}<br />`);
+            elLog.insertAdjacentHTML('afterbegin', `${msg}<br />`);
         };
 
+        // Connect to server
         let socket = null;
         let serverUrl = 'ws://127.0.0.1:8000/demo';
         if (window.MozWebSocket) {
@@ -19,36 +24,53 @@
             socket = new WebSocket(serverUrl);
         }
         socket.binaryType = 'blob';
+
+        /**
+         * Callen when connected to websocket server.
+         * @param {Object} msg
+         */
         socket.onopen = (msg) => {
             elStatus.classList.remove('offline');
             elStatus.classList.add('online');
-            return elStatus.innerText = 'connected';
+            elStatus.innerText = 'connected';
         };
 
+        /**
+         * Called when receiving a message from websocket server.
+         * @param {Object} msg
+         */
         socket.onmessage = (msg) => {
             let response = JSON.parse(msg.data);
             log(`Action: ${response.action}`);
-            return log(`Data: ${response.data}`);
+            log(`Data: ${response.data}`);
         };
 
+        /**
+         * Called when disconnected from websocket server.
+         * @param {Object} msg
+         */
         socket.onclose = (msg) => {
             elStatus.classList.remove('online');
             elStatus.classList.add('offline');
-            return elStatus.innerText = 'disconnected';
+            elStatus.innerText = 'disconnected';
         };
 
+        /**
+         * Adds event listener to the status indicator.
+         */
         elStatus.addEventListener('click', () => {
-            return socket.close();
+            socket.close();
         });
 
+        /**
+         * Adds event listener to the send button.
+         */
         elSend.addEventListener('click', () => {
             let payload = {
                 action: elAction.value,
                 data: elData.value
             };
-            return socket.send(JSON.stringify(payload));
+            socket.send(JSON.stringify(payload));
         });
-
     });
-
 }).call();