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Hello World

  • Create app.js
app.js
const express = require('express');

const app = express();

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

const PORT = process.env.PORT || 3000

app.listen(PORT, () => console.log(`Listening on port ${PORT}`));
  • npm run start
  • Go to localhost:3000 in browser or Postman