is node js a server code example

Example 1: node js server

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Example 2: create node js server

import express from 'express';
const server = express();

const port = 8080;

server.get('/', (req, res) => {
  return res.send('Hello, Express.js!');
})

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