emitting events

index.html

@@ -22,7 +22,17 @@
 </form>
 <script src="/socket.io/socket.io.js"></script>
 	<script>
-		  var socket = io();
+	var socket = io();
+	var form = document.getElementById('form');
+  	var input = document.getElementById('input');
+
+  	form.addEventListener('submit', function(e) {
+		e.preventDefault();
+    		if (input.value) {
+      		socket.emit('chat message', input.value);
+     		input.value = '';
+    		}
+  	});	
 	</script>
 </body>
 </html>

index.js

@@ -14,6 +14,9 @@ io.on('connection', (socket) => {
 	socket.on('disconnect', () => {
 		console.log('user disconnected');
 	});
+	socket.on('chat message', (msg) =>{
+		console.log('message: ' + msg);
+	});
 });
 
 server.listen(3030, () => {