Node.js provides a built-in module system that allows developers to organize and reuse code. Dependencies can be managed using npm or yarn.
Node.js can be used with various databases, including MongoDB, PostgreSQL, and MySQL. Mongoose is a popular ORM for MongoDB.
const user = new User({ name: 'John', age: 30 }); user.save((err) => { if (err) { console.error(err); } else { console.log('User saved successfully'); } }); node.js beyond the basics pdf
// Using async/await const fs = require('fs').promises; async function readFile() { try { const data = await fs.readFile('file.txt'); console.log(data.toString()); } catch (err) { console.error(err); } }
// Using promises const fs = require('fs').promises; fs.readFile('file.txt') .then((data) => console.log(data.toString())) .catch((err) => console.error(err)); Mongoose is a popular ORM for MongoDB
const passport = require('passport'); const LocalStrategy = require('passport-local').Strategy;
const userSchema = new mongoose.Schema({ name: String, age: Number }); age: 30 })
To start a new Node.js project, create a new directory and initialize a new project using npm init . This will create a package.json file that will be used to manage dependencies and scripts.