---
title: "Tushar Kumar Raj (@tusharCodes) | Hashnode"
description: "The magic you're looking for is in the work you're avoiding. Read the latest articles by Tushar Kumar Raj on Hashnode."
url: "https://hashnode.com/@tusharCodes"
---

@tusharCodes

# Tushar Kumar Raj

@tusharCodes · Banglore, India · Joined January 2026

The magic you're looking for is in the work you're avoiding

[Website](https://tusharcodes.tech/)

### [How ChatGPT Understands Your Questions?](https://tushar-raj.hashnode.dev/how-chatgpt-understands-your-questions?utm_source=hashnode&utm_medium=feed)

I still remember that Sam Altman tweet, where he introduced ChatGPT to the world. It got mixed responses, some called it the "next big thing", while others called it "worst product concept ever". Well

26 min read · [tushar-raj.hashnode.dev](https://tushar-raj.hashnode.dev/how-chatgpt-understands-your-questions?utm_source=hashnode&utm_medium=feed)

[Jul 1](https://hashnode.com/posts/how-chatgpt-understands-your-questions/6a4534da0ffdb374a6c8c6fe)

### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes](https://tushar-raj.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed)

Imagine recording a Reel on Instagram. You are trimming clips, adding music, applying filters. Then suddenly: internet becomes weak app closes accidentally you decide to post later Yet when you r

7 min read · [tushar-raj.hashnode.dev](https://tushar-raj.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed)

[May 31](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a1c0a79800951c01730b71f)

### [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://tushar-raj.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed)

Imagine opening WhatsApp while traveling on a flight. Airplane mode is enabled. No internet. No WiFi. No mobile data. Yet something surprising still happens. You type: "Hey, I landed safely." and pres

7 min read · [tushar-raj.hashnode.dev](https://tushar-raj.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed)

[May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1bfb31f77c84962eb0fd85)

### [How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router](https://tushar-raj.hashnode.dev/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router?utm_source=hashnode&utm_medium=feed)

Most beginner React Native applications start with folder structures like this: components/ screens/ utils/ api/ At first this feels clean. Then the app grows. You add: authentication notifications

7 min read · [tushar-raj.hashnode.dev](https://tushar-raj.hashnode.dev/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router?utm_source=hashnode&utm_medium=feed)

[May 22](https://hashnode.com/posts/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router/6a10cb101f237623ea3781d1)

### [Expo Router vs React Navigation —Which One Should You Use in 2026?](https://tushar-raj.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed)

For years, navigation in React Native applications mostly meant one thing React Navigation. It became the standard solution for: moving between screens handling stacks and tabs managing nested navi

6 min read · [tushar-raj.hashnode.dev](https://tushar-raj.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed)

[May 22](https://hashnode.com/posts/expo-router-vs-react-navigation-which-one-should-you-use-in-2026/6a10b5a91f237623ea2e48b1)