@dhirajdotdev

Expo Router vs React Navigation - Which One Should You Use in 2026?

May 22 · 8 min read · If you build React Native apps long enough, eventually you realize: navigation is not just “moving between screens”. It’s actually: moving between screens while preserving application state That soun

How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router

May 22 · 8 min read · Most React Native apps look clean in the beginning. You create a few folders: /screens /components /hooks /utils everything feels organized… until the app grows. You add: authentication realtime sy

The Node.js Event Loop Explained

May 9 · 6 min read · One of the most important concepts in Node.js is: The Event Loop It’s the reason Node.js can: handle thousands of requests process async operations efficiently remain responsive with a single JavaS

Blocking vs Non-Blocking Code in Node.js

May 9 · 5 min read · One of the biggest reasons Node.js became popular is its: Non-Blocking Architecture But to understand why that matters, we first need to understand the problem with: Blocking Code The difference betwe

REST API Design Made Simple with Express.js

May 9 · 6 min read · Modern web applications constantly communicate with servers. Examples: frontend fetching user profiles mobile apps loading products dashboards updating analytics applications sending login request