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socket io 2
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| var app = require('express')(); | |
| var http = require('http').Server(app); | |
| var io = require('socket.io')(http); | |
| app.get('/', function(req, res){ | |
| res.sendFile(__dirname + '/index.html'); | |
| }); | |
| io.on('connection', function(socket){ | |
| console.log('a user connected'); | |
| }); | |
| http.listen(3000, function(){ | |
| console.log('listening on *:3000'); | |
| }); | |
| io.on('connection', function(socket){ | |
| console.log('a user connected'); | |
| socket.on('disconnect', function(){ | |
| console.log('user disconnected'); | |
| }); | |
| }); | |
| io.on('connection', function(socket){ | |
| socket.on('chat message', function(msg){ | |
| console.log('message: ' + msg); | |
| }); | |
| }); | |
| io.emit('some event', { for: 'everyone' }); | |
| io.on('connection', function(socket){ | |
| socket.broadcast.emit('hi'); | |
| }); | |
| io.on('connection', function(socket){ | |
| socket.on('chat message', function(msg){ | |
| io.emit('chat message', msg); | |
| }); | |
| }); |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Socket.IO chat</title> | |
| <style> | |
| * { margin: 0; padding: 0; box-sizing: border-box; } | |
| body { font: 13px Helvetica, Arial; } | |
| form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; } | |
| form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; } | |
| form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; } | |
| #messages { list-style-type: none; margin: 0; padding: 0; } | |
| #messages li { padding: 5px 10px; } | |
| #messages li:nth-child(odd) { background: #eee; } | |
| </style> | |
| </head> | |
| <body> | |
| <ul id="messages"></ul> | |
| <form action=""> | |
| <input id="m" autocomplete="off" /><button>Send</button> | |
| </form> | |
| <script src="/socket.io/socket.io.js"></script> | |
| <script src="https://code.jquery.com/jquery-1.11.1.js"></script> | |
| <script> | |
| $(function () { | |
| var socket = io(); | |
| $('form').submit(function(){ | |
| socket.emit('chat message', $('#m').val()); | |
| $('#m').val(''); | |
| return false; | |
| }); | |
| socket.on('chat message', function(msg){ | |
| $('#messages').append($('<li>').text(msg)); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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