[英]socket.io on method callback
server.js server.js
socket.on('adduser', username, successcallback){
if(users.hasOwnProperty(username)){
} else {
socket.username = username;
users[username] = { name: username };
socket.emit('updatechat', 'SERVER', 'you have connected');
socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
io.sockets.emit('updateusers', users);
successcallback({ msg: 'User ' + username + ' has been successfully added' });
}
});
index.html index.html
socket.on('connect', function(){
var username = prompt('Whats your name?');
socket.emit('adduser', username, function(data){
console.log(data);
});
});
This makes my app crash. 这使我的应用崩溃。 Isn't this how a callback should be implemented?
这不是应该如何实现回调吗?
The definition of the adduser message handler is missing a function(...)
. adduser消息处理程序的定义缺少一个
function(...)
。 It should be: 它应该是:
socket.on('adduser', function(username, successcallback) {
...
});
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