when I click the chat button for the first time, one event is triggered, the second click triggers two events, and so on
server code:
socket.on("chat",function(data){
io.sockets.emit("chat",data);
});client code:
$(document).off("click.chatBtn").on("click.chatBtn",".chatBtn",function(e){
var $target = $(e.currentTarget);
var $charInput = $target.siblings(".charInput");
var val = $charInput.val();
var userName = $userName.val();
if(!userName){
alert("");
return;
}
socket = io.connect();
socket.emit("chat",userName+" speak:"+val);
socket.on("chat",function(data){
var $it = addMsg(data);
$it.appendTo($message);
});
}); 