在node.js中将函数参数保存到从socket.on传入的全局变量

const net = require('net');

const server = net.createServer((socket) => {
  // 在这里处理socket连接
});

const port = 3000; // 指定监听的端口号
server.listen(port, () => {
  console.log(`Server is listening on port ${port}`);
});

let savedParam; // 全局变量

const server = net.createServer((socket) => {
  socket.on('saveParam', (param) => {
    savedParam = param;
    console.log(`Parameter saved: ${savedParam}`);
  });
});

function doSomething() {
  console.log(`Saved parameter: ${savedParam}`);
}