diff --git a/.gitignore b/.gitignore
index 0026861..ac71020 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,6 @@ _cgo_export.*
 _testmain.go
 
 *.exe
+
+.idea/
+*.iml
\ No newline at end of file
diff --git a/examples/chat/conn.go b/examples/chat/conn.go
index 40fd38c..2fe2357 100644
--- a/examples/chat/conn.go
+++ b/examples/chat/conn.go
@@ -30,8 +30,8 @@ var upgrader = websocket.Upgrader{
 	WriteBufferSize: 1024,
 }
 
-// connection is an middleman between the websocket connection and the hub.
-type connection struct {
+// Conn is an middleman between the websocket connection and the hub.
+type Conn struct {
 	// The websocket connection.
 	ws *websocket.Conn
 
@@ -40,9 +40,9 @@ type connection struct {
 }
 
 // readPump pumps messages from the websocket connection to the hub.
-func (c *connection) readPump() {
+func (c *Conn) readPump() {
 	defer func() {
-		h.unregister <- c
+		hub.unregister <- c
 		c.ws.Close()
 	}()
 	c.ws.SetReadLimit(maxMessageSize)
@@ -56,18 +56,18 @@ func (c *connection) readPump() {
 			}
 			break
 		}
-		h.broadcast <- message
+		hub.broadcast <- message
 	}
 }
 
 // write writes a message with the given message type and payload.
-func (c *connection) write(mt int, payload []byte) error {
+func (c *Conn) write(mt int, payload []byte) error {
 	c.ws.SetWriteDeadline(time.Now().Add(writeWait))
 	return c.ws.WriteMessage(mt, payload)
 }
 
 // writePump pumps messages from the hub to the websocket connection.
-func (c *connection) writePump() {
+func (c *Conn) writePump() {
 	ticker := time.NewTicker(pingPeriod)
 	defer func() {
 		ticker.Stop()
@@ -98,8 +98,8 @@ func serveWs(w http.ResponseWriter, r *http.Request) {
 		log.Println(err)
 		return
 	}
-	c := &connection{send: make(chan []byte, 256), ws: ws}
-	h.register <- c
-	go c.writePump()
-	c.readPump()
+	conn := &Conn{send: make(chan []byte, 256), ws: ws}
+	hub.register <- conn
+	go conn.writePump()
+	conn.readPump()
 }
diff --git a/examples/chat/hub.go b/examples/chat/hub.go
index 449ba75..92da865 100644
--- a/examples/chat/hub.go
+++ b/examples/chat/hub.go
@@ -6,44 +6,44 @@ package main
 
 // hub maintains the set of active connections and broadcasts messages to the
 // connections.
-type hub struct {
+type Hub struct {
 	// Registered connections.
-	connections map[*connection]bool
+	connections map[*Conn]bool
 
 	// Inbound messages from the connections.
 	broadcast chan []byte
 
 	// Register requests from the connections.
-	register chan *connection
+	register chan *Conn
 
 	// Unregister requests from connections.
-	unregister chan *connection
+	unregister chan *Conn
 }
 
-var h = hub{
+var hub = Hub{
 	broadcast:   make(chan []byte),
-	register:    make(chan *connection),
-	unregister:  make(chan *connection),
-	connections: make(map[*connection]bool),
+	register:    make(chan *Conn),
+	unregister:  make(chan *Conn),
+	connections: make(map[*Conn]bool),
 }
 
-func (h *hub) run() {
+func (h *Hub) run() {
 	for {
 		select {
-		case c := <-h.register:
-			h.connections[c] = true
-		case c := <-h.unregister:
-			if _, ok := h.connections[c]; ok {
-				delete(h.connections, c)
-				close(c.send)
+		case conn := <-h.register:
+			h.connections[conn] = true
+		case conn := <-h.unregister:
+			if _, ok := h.connections[conn]; ok {
+				delete(h.connections, conn)
+				close(conn.send)
 			}
-		case m := <-h.broadcast:
-			for c := range h.connections {
+		case message := <-h.broadcast:
+			for conn := range h.connections {
 				select {
-				case c.send <- m:
+				case conn.send <- message:
 				default:
-					close(c.send)
-					delete(h.connections, c)
+					close(conn.send)
+					delete(hub.connections, conn)
 				}
 			}
 		}
diff --git a/examples/chat/main.go b/examples/chat/main.go
index 3c4448d..39943e6 100644
--- a/examples/chat/main.go
+++ b/examples/chat/main.go
@@ -12,7 +12,7 @@ import (
 )
 
 var addr = flag.String("addr", ":8080", "http service address")
-var homeTempl = template.Must(template.ParseFiles("home.html"))
+var homeTemplate = template.Must(template.ParseFiles("home.html"))
 
 func serveHome(w http.ResponseWriter, r *http.Request) {
 	if r.URL.Path != "/" {
@@ -24,12 +24,12 @@ func serveHome(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	homeTempl.Execute(w, r.Host)
+	homeTemplate.Execute(w, r.Host)
 }
 
 func main() {
 	flag.Parse()
-	go h.run()
+	go hub.run()
 	http.HandleFunc("/", serveHome)
 	http.HandleFunc("/ws", serveWs)
 	err := http.ListenAndServe(*addr, nil)