安裝：
npm install ws
服務端（nodejs）：
var WebSocketServer = require('ws').Server,wss = new WebSocketServer({ port: 8080 });wss.on('connection', function (ws) {console.log('client connected');ws.on('message', function (message) { console.log(message);});});客戶端：
<script>var ws = new WebSocket("ws://localhost:8080");ws.onopen = function (e) { console.log('Connection to server opened'); sendMessage();}function sendMessage() { ws.send('hello');}</script>新聞熱點
疑難解答
