Module Overview

What You’ll Learn

• Use the modern JavaScript syntax that real Node.js code is written in
• Work confidently with modules, classes, and destructuring
• Handle asynchronous code with promises and async/await

💡 Why this module matters: Node.js code, and especially Express code, leans hard on ES6+ syntax and async patterns. This module is a working review, not a first introduction, tightening up exactly the features the rest of this course uses constantly.

What’s Covered

• ES6+ review, let/const, arrow functions, template literals, destructuring, and the spread/rest operators.
• Modules, importing and exporting code across files.
• Objects and arrays, the array and object methods used constantly in real code.
• Classes, JavaScript’s syntax for structured, reusable objects.
• Error handling, try/catch and throwing meaningful errors.
• Promises, representing a value that isn’t ready yet.
• Async/await, writing asynchronous code that reads like synchronous code.

Hands-On

By the end of this module, you’ll be comfortable reading and writing the exact JavaScript patterns, modules, classes, promises, and async/await, that appear in every remaining module of this course.

Next module: Node.js itself, its architecture, the event loop, and its own module system.