[Express get started] #express

express.js

const dotenv = require('dotenv');
const express = require('express')

dotenv.config();
const port = 3000
const app = express();

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

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