https://github.com/cybersayak/javascript-mastery

Learnings about JavaScript by @adrianhajdin
https://github.com/cybersayak/javascript-mastery

javascript learning-javascript

Last synced: 3 months ago
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Learnings about JavaScript by @adrianhajdin

• Host: GitHub
• URL: https://github.com/cybersayak/javascript-mastery
• Owner: Cybersayak
• Created: 2024-10-28T15:18:41.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2025-02-14T11:41:54.000Z (3 months ago)
• Last Synced: 2025-02-14T12:36:27.929Z (3 months ago)
• Topics: javascript, learning-javascript
• Homepage:
• Size: 1.95 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# JavaScript-Mastery

![JSM](https://github.com/user-attachments/assets/9988e58f-c6f9-4245-9187-0a2a657d9977)

---

### 🚀 **Road to JavaScript Mastery**:  

## 🔥 **1. JavaScript Engine & Internals**  

- **How JavaScript engines (V8, SpiderMonkey, JavaScriptCore) work internally**

- **JIT Compilation**: How JS is optimized at runtime (Hidden Classes, Inline Caching)

- **Garbage Collection**: Mark-and-Sweep, Generational GC, WeakMaps/WeakSets use cases  

- **Event Loop & Concurrency Model**: Macro/Microtasks, Task Queues, Browser vs Node.js  

- **Understanding ECMAScript Spec**: How JavaScript is defined at the standard level

---

## ⚡ **2. Advanced Asynchronous Programming**  

- **Promises Deep-Dive**: Internal mechanics, Promise chaining, Microtask Queue  

- **Async/Await Internals**: How JavaScript transforms async/await into Promises  

- **Event Loop with Async Code Execution (Real-World Cases)**  

- **Web Workers & Service Workers**: Multithreading in JavaScript  

- **Race Conditions & Deadlocks**: Handling concurrency issues  

---

## 🎯 **3. JavaScript Object System & Memory Management**  

- **Prototype Chain & Inheritance**: Internal workings of `__proto__` and `Object.create`  

- **Closures & Memory Leaks**: Hidden memory leaks, WeakRef & FinalizationRegistry  

- **Deep Understanding of `this` Binding**: Arrow functions vs Regular functions  

- **Property Descriptors & Object.defineProperty**  

- **Symbol & Hidden Object Properties**: Advanced metaprogramming  

---

## 🔄 **4. JavaScript Performance Optimization**  

- **Profiling & Benchmarking**: Chrome DevTools, Node.js Performance Hooks  

- **Memory Leaks & Heap Snapshots**: Detecting and fixing leaks  

- **V8 Optimizations**: Understanding Deoptimization, Hidden Classes, Inline Caching  

- **Efficient Data Structures**: Arrays vs Sets vs Maps, BigInt for large numbers  

---

## 🛡️ **5. Security & Exploitation**  

- **JavaScript Engine Exploits**: Buffer Overflows, JIT Spraying  

- **Prototype Pollution**: How attackers manipulate objects  

- **CORS, CSRF, XSS, and CSP**: Protecting web applications  

- **Node.js Security**: OWASP security best practices  

---

## 📡 **6. Advanced Networking & Web APIs**  

- **HTTP/2 & HTTP/3 with JavaScript**: Optimizing API calls  

- **WebSockets, SSE, WebRTC**: Real-time communication deep dive  

- **Fetch vs Axios vs Raw XMLHttpRequest**: Under the hood  

- **GraphQL & gRPC in JavaScript**: Deep dive  

---

## ⚙️ **7. Meta-Programming & Code Generation**  

- **Proxies & Reflect API**: Creating dynamic objects  

- **AST (Abstract Syntax Tree)**: How JavaScript compilers parse code  

- **Writing Custom Babel Plugins**: Code transformation and transpilation  

- **Decorators & Meta Programming**: Advanced function enhancements  

---

## 🔄 **8. Functional Programming (FP) in JavaScript**  

- **Pure Functions, Immutability, Higher-Order Functions**  

- **Monads, Functors, and Category Theory in JS**  

- **Partial Application, Currying, and Composition**  

- **RxJS & Reactive Programming**: Mastering Observables  

---

## 🏗️ **9. JavaScript Framework Internals (React, Vue, Svelte)**  

- **Reactivity & Virtual DOM**: How frameworks optimize rendering  

- **Fiber Reconciler (React 19)**: Deep dive into rendering optimizations  

- **State Management (Redux, Zustand, Recoil, Signals, etc.)**  

- **Server Components in React (Next.js 15)**  

- **Understanding Vue’s Reactivity System**  

---

## 🏆 **10. JavaScript at Scale (TypeScript, Monorepos, Build Tools)**  

- **Deep TypeScript Understanding**: Advanced types, Type Inference, Generics, Type Guards  

- **Monorepos & Tooling**: Nx, TurboRepo, Yarn Workspaces  

- **Webpack, Vite, SWC, ESBuild**: Understanding modern build pipelines  

- **Module Federation & Microfrontends**  

---

## 🎨 **11. JavaScript in Different Environments**  

- **JavaScript in Embedded Systems (Espruino, Johnny-Five)**  

- **JavaScript in Game Development (Three.js, Babylon.js)**  

- **JavaScript in AI/ML (TensorFlow.js, Brain.js)**  

- **JavaScript in Blockchain (Solidity, Ethers.js, Web3.js)**  

---

To truly **surpass** a 10-year JS developer, you should:  

✅ **Read the ECMAScript Specification**: Understanding how JavaScript is officially defined  

✅ **Build Your Own JavaScript Engine (JS Interpreter)**  

✅ **Contribute to Open-Source JavaScript Engines (e.g., V8, SpiderMonkey)**  

---