Mastering OOP with JavaScript: Abstraction, Encapsulation, Inheritance, Polymorphism

Async I/O: Waiting Without Blocking Asynchronous programming is a programming model, not a hardware property. It answers: how can a single thread handle many tasks efficiently by never sitting idle? The core idea is the event loop. Instead of blocking while waiting for a response, an async system registers a callback, releases the thread, and picks up where it left off when the response arrives. Key insight: → Two async queries = max(t_user, t_orders) → Two sync queries = t_user + t_orders That's the efficiency gain. Async uses special syntax: → async/await in JavaScript, Python, Rust → Fibers in Ruby → Goroutines in Go The runtime transforms your linear code into a state machine that pauses and resumes at await points. 💡 Why Node.js is async by design: → Single-threaded with event loop → Handles thousands of connections with one thread → No thread memory overhead Common misconception: ❌ "Async means parallel" ✅ NO — async is still single-threaded. It achieves concurrency through interleaving, not simultaneous execution. #SoftwareEngineering #AsyncIO #NodeJS #JavaScript #SystemDesign #Backend #Programming #Performance

I recently shared a short blog where I explain Object-Oriented Programming (OOP) in JavaScript along with its four core concepts — Encapsulation, Inheritance, Polymorphism, and Abstraction — using simple and beginner-friendly examples 💡 If you're learning JavaScript or just brushing up your OOP fundamentals, this might be useful for you 🚀 👉 Read the blog here: https://lnkd.in/g-B4g5gk Hitesh Choudhary | Piyush Garg | Suraj Kumar Jha | Chai Code | Akash Kadlag ☕ #JavaScript #OOP #WebDevelopment #Programming #LearnInPublic #Blog #Cohort2026

📒 Just documented JavaScript Data Types in a clean handwritten format! Concepts feel much easier when you write and visualize them instead of just reading 📖✍️ Covered: ✔️ Primitive Types ✔️ Reference Types ✔️ Special Concepts like "typeof" & Dynamic Typing JavaScript is simple… but its behavior makes it powerful (and sometimes tricky 😄) Consistency in learning > speed 🚀 If you're learning JavaScript, start from the basics — they matter more than you think. 💬 What topic should I cover next? #JavaScript #WebDevelopment #CodingJourney #LearnToCode #Frontend #Programming #Developers #100DaysOfCode #Tech #CodeNewbie

30 Days JavaScript Challenge : Day 26 ✅ Today’s problem was about flattening a multi-dimensional array, but with a twist we were given a depth n and had to flatten only up to that level. Not a full flatten, not a shallow one… somewhere in between. It really makes you think about recursion and depth control: When to go deeper When to stop How to keep track of current depth What I liked is how this problem builds intuition around nested data structures something you see a lot in real apps (APIs, configs, UI trees, etc.). Slowly getting more comfortable with recursion and thinking in layers. #javascript #leetcode #webdevelopment #frontenddeveloper #codingchallenge #learninginpublic #developers #programming #buildinpublic

Sharing beginner-friendly notes on Object-Oriented Programming (OOP) in JavaScript 🧠 Covered core concepts like Classes, Constructors, Inheritance, Encapsulation, Polymorphism, Getters/Setters, Static methods, and Private fields (#) with clear examples. Also explained how super, instanceof, and prototypes work behind the scenes. A practical guide to understanding how OOP works in modern JavaScript. Feedback and suggestions are welcome! #JavaScript #OOP #Coding #Learning #Programming

Official SDKs for JavaScript and Python 🚀 Building on SchedulifyX just got easier. Our SDKs wrap the entire REST API with: 🟡 JavaScript/TypeScript SDK Full TypeScript types and autocomplete Async/await patterns npm install @schedulifyx/sdk 🐍 Python SDK Type hints throughout Async support pip install schedulifyx Both SDKs include built-in auth, error handling, pagination helpers, and retry logic. Whether you're building a custom CMS integration, automated reporting, or a white-label dashboard — ship it in hours, not days. → schedulifyx.com #SchedulifyX #SDK #JavaScript #Python #DevTools #API #SocialMediaAutomation

When two systems communicate over the internet, they often use different programming languages. For example: Frontend → JavaScript Backend → Python / Go / Rust / Java But these languages all have different data structures and types. So how do they actually understand each other? The answer is serialization and deserialization. In this article, I explain this concept from first principles: • How clients and servers exchange data • Why systems need a common format • What serialization and deserialization actually mean • Why JSON became the standard format for APIs • Where serialization fits in the network communication flow If you're learning backend engineering or system design, this is one of those foundational concepts that makes many other things easier to understand. 📖 Read the article: Serialization & Deserialization https://lnkd.in/g4GXncHj I’m also documenting my learning journey in these playlists: Backend Engineering from First Principles https://lnkd.in/g7MJ6TnP System Design from First Principles (HLD + LLD) https://lnkd.in/gateH6Jz #BackendEngineering #SystemDesign #APIDesign #SoftwareEngineering #WebDevelopment

30 Days JavaScript Challenge: Day 25 ✅ Today’s problem was about merging two arrays of objects based on a common key (id). Sounds simple at first, but it had a few interesting parts: Handling unique ids Merging objects when ids match Making sure values from the second array override the first Keeping everything sorted It’s actually very close to real-world scenarios like combining data from two APIs or updating existing records with new data. Problems like this make you think more about data handling and structure, not just loops and conditions. Day by day, things are starting to connect better. 🚀 #javascript #leetcode #webdevelopment #frontenddeveloper #codingchallenge #learninginpublic #developers #programming #buildinpublic #JavaScriptMastery

If frontend is what users see… then backend is what makes everything work. Most beginners jump into backend without a clear path — and end up lost. So I created a simple roadmap to help you learn **backend development step by step**. From understanding how servers work to building real APIs and projects — this is the path you should follow in 2026. Save this post so you don’t lose it 🚀 #backend #webdevelopment #programming #javascript #python #developers #coding

Understanding the Django Request–Response Flow is essential for building scalable backend systems. Django follows a structured flow where each component plays a specific role in processing requests and returning responses efficiently. Key flow: - Client request reaches the web server - URL configuration maps the request to a view - Views handle logic and interact with models - Templates structure the final response - Response is returned to the client This organized architecture makes Django reliable, maintainable, and suitable for large-scale applications. Strong backend fundamentals lead to better system design and scalable applications. #Django #Python #BackendDevelopment #WebDevelopment #SoftwareEngineering