VSVishal Singhinmy-blog-mobile-developments.hashnode.dev·May 31 · 4 min readHow Instagram Stores Reels, Photos, & Drafts Behind the ScenesTopic Checklist Why Efficient Storage? Pre-Upload Storage Saving Drafts Local vs Cloud Storage Resumable Uploading Processing & Compression Thumbnails & Previews Feed Caching Models Global CD00
VSVishal Singhinmy-blog-mobile-developments.hashnode.dev·May 31 · 10 min readHow WhatsApp Works Without Internet: Offline Messaging and Sync Explained✈ The Setup You're on a flight. Airplane mode is on. You open WhatsApp, type a message to your friend, and tap send. The message appears in your chat instantly — with a small clock icon beside it. Twe00
VSVishal Singhinmy-blog-mobile-developments.hashnode.dev·May 29 · 14 min readHow Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router// Table of Contents Why Simple Folder Structures Fail at Scale Why Architecture Matters in React Native Production-Grade Expo Router Folder Architecture Feature-Based Separation Navigation Archi00
VSVishal Singhinmy-blog-mobile-developments.hashnode.dev·May 7 · 7 min readHow React Virtual DOM works under the Hood01 — The Problem Why Direct DOM Manipulation Is Slow Before React existed, developers built dynamic UIs by directly reaching into the browser's Document Object Model (DOM) and mutating it — appending 00
VSVishal Singhinblog.xpvishal.dev·May 1 · 7 min readHow Node.js Handles Multiple Requests with a Single ThreadTable of Contents The Single-Threaded Nature of Node.js The Event Loop — The Real Engine Delegating Tasks to Background Workers Handling Multiple Client Requests Why Node.js Scales So Well 01 22NE
