creating button

public/index.html

@@ -10,6 +10,7 @@
             <dt>Current Prompt</dt>
             <dd></dd>
         </dl>
+        <button>I'm Done</button>
         <script src="/socket.io/socket.io.js"></script>
         <script src="/js/index.js" charset="utf-8"></script>
     </body>

public/js/index.js

@@ -1,4 +1,9 @@
 const socket = io.connect('/');
+const button = document.querySelector('button')
 socket.on('prompt sent', function (data) {
+    button.removeAttribute("disabled");
     document.querySelector('dd').innerHTML = data;
 });
+button.addEventListener('click', (event)=>{
+    button.setAttribute("disabled",true);
+});