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• Node.js Introduction
• Node.js Installation

• Database Connection - MYSQL

• Database Connection MongoDB

var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";

MongoClient.connect(url, function(err, db) {
if (err) {
    console.error('Error connecting to MongoDB database:', err);
    return;
  }
  console.log('Connected to MongoDB database');

  });
});