Node.js 使用哪个 websocket 库 [关闭]

Node.js 使用的主要 WebSocket 库是 `ws`。它是一个简单且高性能的库，允许在 Node.js 中创建 WebSocket 服务器和客户端。WebSocket 是一种实时通信协议，可以在客户端和服务器之间建立持久连接，实现双向通信。

javascript
const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 8080 });
wss.on('connection', (ws) => {
  ws.on('message', (message) => {
    console.log(`Received message: ${message}`);
    ws.send(`Server received: ${message}`);
  });
  ws.on('close', () => {
    console.log('Client disconnected');
  });
});

javascript
const WebSocket = require('ws');
const ws = new WebSocket('ws://localhost:8080');
ws.on('open', () => {
  console.log('Connected to server');
  ws.send('Hello server!');
});
ws.on('message', (message) => {
  console.log(`Received message from server: ${message}`);
});
ws.on('close', () => {
  console.log('Disconnected from server');
});