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@RajatJaiswal

Rajat Jaiswal

@RajatJaiswal

System Test Engineer @Juniper Networks

IndiaJoined February 2021

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Rajat Jaiswal's blogs

Javascript Guide For Beginnersjavascriptguideforbegineer.hashnode.dev25 posts

NodeJsnodeforbeginners.hashnode.dev15 posts

Network Basicsnetworkbasic101.hashnode.dev6 posts

Html & Css Basicshtml-css-basics.hashnode.dev4 posts

React Nativereactnativebeginer.hashnode.dev4 posts

About

Nothing here yet.

Available for

Nothing here yet.

Rajat Jaiswal's blogs

Javascript Guide For Beginnersjavascriptguideforbegineer.hashnode.dev25 posts

NodeJsnodeforbeginners.hashnode.dev15 posts

Network Basicsnetworkbasic101.hashnode.dev6 posts

Html & Css Basicshtml-css-basics.hashnode.dev4 posts

React Nativereactnativebeginer.hashnode.dev4 posts

Articles Comments

Recently published

RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 30 · 7 min read

How Instagram Stores Reels, Photos, and Drafts Behind the Scenes

You open Instagram, spend 20 minutes recording a Reel, add music, overlay some text, and then hit Save Draft. You close the app, clear it from your phone’s memory, restart your device later, and open

RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 28 · 4 min read

How WhatsApp Works Without Internet?

You open WhatsApp, turn on aeroplane mode, send a message… and it still appears instantly in the chat. How? Messaging apps feel “real-time,” but great ones are also offline-first. They’re designed so

RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 22 · 2 min read

How Netflix Would Be Built Today Using Expo Router

Building a “Netflix-like” app today isn’t primarily a UI challenge—it’s an architecture challenge. On day 1, a simple React Native app can be: components/ screens/ utils/ But at Netflix scale (or Inst

RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 22 · 6 min read

Expo Router vs. React Navigation

If you’ve spent any time building mobile apps with React Native, you know that handling navigation is one of the most critical decisions you'll make. Unlike web browsers, which have a built-in URL his

RJRajat Jaiswalinnodeforbeginners.hashnode.dev·May 10 · 4 min read

What is Middleware in Express and How It Works

Middleware is one of the most important ideas in Express.js. It’s the reason Express apps are flexible: you can plug in logic for logging, authentication, validation, and error handling without rewrit