index.html

<!DOCTYPE HTML>

<html>
   <head>
    <h1>A Question</h1>
    <label for="fname">Your Response</label>
  <input type="text" id="chattext"><br><br>

  <button onclick="sendChat()">send</button>

      <script type = "text/javascript">


         function sendChat() {

              //var ws = new WebSocket("wss://websocket.jieguann.com");
             var ws = new WebSocket("ws://127.0.0.1:1880/response");
              // var ws = new WebSocket("ws://localhost:8080");
if ("WebSocket" in window) {
ws.onopen = function() {
             ws.send(document.getElementById('chattext').value)
        document.getElementById('chattext').value = null;                 //alert("Message is sent...");
               };
         }
         console.log(document.getElementById('chattext').value )

         //console.log(document.getElementById('chattext').value)

      }


      </script>

   </head>

   <body>
      </div>
   </body>
</html>