Master the language of the web
JavaScript is the programming language of the web, essential for frontend development and increasingly popular for backend with Node.js. This roadmap covers JavaScript fundamentals, ES6+ features, DOM manipulation, async programming, object-oriented and functional programming patterns, and modern JavaScript tooling. You'll learn variables, data types, functions, closures, promises, async/await, classes, modules, and more. JavaScript powers interactive websites, web applications, mobile apps (React Native), desktop apps (Electron), and server-side applications (Node.js). Understanding JavaScript deeply is crucial for any web developer, whether frontend, backend, or full-stack.
4-6 weeks
let, const, var, data types, type conversion
Operators, if-else, switch, loops
Function declaration, expression, arrow functions, scope
Array methods, object literals, destructuring
4-6 weeks
Syntax, this binding, use cases
Array/object destructuring, spread operator
String interpolation, multi-line strings
Import/export, ES modules
6-8 weeks
Lexical scope, closure patterns
Prototype chain, inheritance patterns
Context, binding, call/apply/bind
ES6 classes, inheritance, static methods
6-8 weeks
Callback functions, callback hell
Promise API, chaining, error handling
Async functions, await, error handling
HTTP requests, REST APIs
4-6 weeks
Selecting, creating, modifying elements
Event listeners, event delegation, bubbling
localStorage, sessionStorage, geolocation
Making HTTP requests, handling responses
4-6 weeks
npm, yarn, package.json
Webpack, Vite, bundling
Jest, unit testing, TDD
DevTools, debugging techniques