将套接字连接存储在javascript数组中,并在数组上使用array.find()时会出现意外行为
在以下sockets.find语句后面的代码中,console.logAFTER语句不执行将套接字连接存储在javascript数组中,并在数组上使用array.find()时会出现意外行为,javascript,node.js,socket.io,socket.io-1.0,Javascript,Node.js,Socket.io,Socket.io 1.0,在以下sockets.find语句后面的代码中,console.logAFTER语句不执行 io.sockets.on('connection', function (socket) { var this_socket = socket; socket.username = null; socket.gameSessionName = null; socket.update_usernames = false; sockets.push(socket)
io.sockets.on('connection', function (socket) {
var this_socket = socket;
socket.username = null;
socket.gameSessionName = null;
socket.update_usernames = false;
sockets.push(socket); // sockets is AN ARRAY
socket.on('loaded', function (data) {
var previous_socket;
socket.username = data.username;
socket.status = 'BROWSE_PLAYERS'; // WAIT_FOR_ACCEPT, PLAYING
console.log("BEFORE");
previous_socket = sockets.find (function(s) {
return false;
});
console.log("AFTER"); // THIS IS STATEMENT IS NOT EXECUTED
....
如果socket.find代码的注释如下所示,则会打印console.logAFTER语句
// previous_socket = sockets.find (function(s) {
// return false;
// });
看起来像是插座。找到。。。这种说法有副作用。如何解决此问题。sockets.filter not sockets.find这里声明了sockets.find?@lujcon谢谢。忽略了在ES6中声明的发现