var app = require('express')(); var http = require('http').Server(app); var io = require('socket.io')(http); app.get('/', function(req, res){ res.sendfile('index.html'); }); http.listen(3000, function(){ console.log('listening on *:3000'); }); io.sockets.on('connection', function (socket){ // hello, worldã¯ã¯ã©ã¤ã¢ã³ããæ¥ç¶ããã¨ããã«1度ã ãéä¿¡ããã¾ã socket.emit('message_from_server', 'hello, world'); //ãã¯ã©ã¤ã¢ã³ãããmess


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