将res.json返回的内容赋值给Node.js中的变量

const http = require('http');

const server = http.createServer((req, res) => {
  // 在这里处理请求并返回响应
});

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});

const http = require('http');

const server = http.createServer((req, res) => {
  const data = {
    name: 'John',
    age: 25,
    city: 'New York'
  };

  res.setHeader('Content-Type', 'application/json');
  res.end(JSON.stringify(data));
});

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});

const http = require('http');

const server = http.createServer((req, res) => {
  const data = {
    name: 'John',
    age: 25,
    city: 'New York'
  };

  const responseData = JSON.stringify(data);

  res.setHeader('Content-Type', 'application/json');
  res.end(responseData);
});

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});