JavaScript: The Language of the Web

JavaScript is the programming language of the web. Originally designed for browser interactivity, it has evolved into a full-stack language with Node.js on the backend. JavaScript powers interactive websites, web applications, mobile apps, desktop applications, and even IoT devices.

• Web Essential: The only language that runs natively in browsers
• Full-Stack: Frontend (React, Vue) and backend (Node.js) with one language
• Most Used: #1 language on GitHub for 10+ consecutive years
• Huge Job Market: More JS jobs than any other language
• Instant Feedback: See results immediately in the browser

• Web Development Aspirants: JavaScript is mandatory
• Frontend Developers: Master React, Vue, or Angular
• Backend Developers: Build APIs with Node.js/Express
• Mobile Developers: Cross-platform with React Native

• JavaScript ES6+ fundamentals
• DOM manipulation
• Async/await and promises
• React, Vue, or Angular frameworks
• Node.js and Express
• REST API development
• npm ecosystem
• Testing with Jest

1. Basics: Variables, functions, arrays, objects
2. DOM: Browser manipulation and events
3. ES6+: Modern syntax, modules, promises
4. Framework: React (most popular) or Vue
5. Backend: Node.js and Express
6. Full-Stack: Complete application development

• Frontend Developer: €40,000 – €70,000/year
• React Developer: €45,000 – €80,000/year
• Node.js Developer: €48,000 – €82,000/year
• Full-Stack Developer: €50,000 – €90,000/year