Node.js Beyond The Basics Pdf «FRESH ✪»

const mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });

const userSchema = new mongoose.Schema({ name: String, age: Number });

Node.js provides various testing frameworks, including Mocha and Jest.

mkdir myproject cd myproject npm init

Node.js can be used with various databases, including MongoDB, PostgreSQL, and MySQL. Mongoose is a popular ORM for MongoDB.

passport.use(new LocalStrategy((username, password, done) => { // Verify user credentials if (username === 'john' && password === 'password') { return done(null, { username: 'john' }); } else { return done(null, false); } }));

app.listen(3000, () => { console.log('Server listening on port 3000'); }); node.js beyond the basics pdf

// Using callbacks fs.readFile('file.txt', (err, data) => { if (err) { console.error(err); } else { console.log(data.toString()); } });

const passport = require('passport'); const LocalStrategy = require('passport-local').Strategy;

// Using a module const greet = require('./greet'); greet('John'); // Output: Hello, John! const mongoose = require('mongoose'); mongoose

passport.serializeUser((user, done) => { done(null, user.username); });

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.

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine that allows developers to create scalable and high-performance server-side applications. Node.js provides an event-driven, non-blocking I/O model that makes it lightweight and efficient. passport