Socket.io how to check if user is typing and broadcast it to other users

Question

I am trying to setup socket.io chat server. I have gotten it up to send and receive message from server and client. I was interested in showing users if some one is typing. I kn

Answer 1

   function typingtimeoutFunction (){                 

      socket.emit('typingMessage', 'stopped typing');    
    },

    onKeyDownNotEnter: function (){
         clearTimeout(this.typingtimeout);
         socket.emit('typingMessage', 'istyping');
        this.typingtimeout = setTimeout(function() {ajaxChat.typingtimeoutFunction();}, 5000);      
    },