Retrieval-Augmented Generation (RAG): How It Works, Why It Helps, and Where It Falls ShortLarge Language Models (LLMs) like ChatGPT, Claude, and Gemini have transformed the way we interact with AI. They can write code, summarize documents, answer questions, and generate human-like conversaJul 19 · 8 min readjavascript-series.hashnode.dev
How WhatsApp Works Without InternetHave you ever noticed how we are able to see the messages on the WhatsApp when we are not connected with the internet though we don't receive any new message but whatever messages we have received andMay 25 · 7 min readhowwhatsappworkswithoutinternet.hashnode.dev
How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo RouterIntroduction When developers first start building React Native applications, the folder structure usually looks simple: src/ ├── screens/ ├── components/ ├── navigation/ ├── services/ └── utils/ May 23 · 9 min readhowappsbuildusingexporouter.hashnode.dev
Expo Router vs React Navigation — Which One Should You Use in 2026?Introduction Navigation is one of the most important parts of any mobile application. Whether you are building: Instagram WhatsApp Uber Netflix an admin dashboard or a simple ecommerce app useMay 23 · 10 min readexporouterreactnavigation.hashnode.dev
Virtual DOM Under the HoodThe DOM( Document Object Model ) is a tree like object representation of an html document created by the browser .When a browser loads an HTML document it parses the HTML and creates a tree like strucMay 8 · 6 min readvirtual-dom-under-the-hood.hashnode.dev