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.
Node.js provides various testing frameworks, including Mocha and Jest. node.js beyond the basics pdf
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); } })); { username: 'john' })
describe('Greet function', () => { it('should greet a person', () => { assert.strictEqual(greet('John'), 'Hello, John!'); }); }); } else { return done(null
app.listen(3000, () => { console.log('Server listening on port 3000'); });
const assert = require('assert'); const greet = require('./greet');