problems with repetitive callbacks

index.js

@@ -13,27 +13,23 @@ const io = socketIO(server, {
     }
 });
 
-let players = [];
+// for more persistent state, this could be incorporated into a database table
+io.on('connection', (socket) => {
+    console.log(`new client connected: ${socket.id}`);
+
+    socket.on('join', (data) => {
+        console.log(`${data} JOINS`)
+        io.emit('fire', data);
+    });
+    
+
+    socket.on('disconnect', () => {
+        console.log(`player ${socket.id} disconnected`);
+    })
+});
 
 server.listen(8000, (err) => {
     if (err) console.log(err);
     console.log("Listening on 8000");
     
-    io.on('connection', (socket) => {
-        if (players.length === 0) players.push(socket.id);
-
-        console.log('new client connected.');
-        console.log(`players: ${players}`);
-        console.log('');
-
-        socket.emit('connection', players);
-
-        socket.on('disconnect', () => {
-            let found = players.indexOf(socket.id);
-            players = players.splice(found, 0, '');
-            console.log(`player ${socket.id} disconnected`);
-            console.log(`players: ${players}`);
-            console.log('');
-        })
-    });
 })