How Instagram Stores Reels, Photos, and Drafts Behind the Scenes
Ankur Kumawat
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59 posts published so far
How WhatsApp Works Without Internet: Offline Messaging and Sync Explained
Ankur Kumawat
How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router
Ankur Kumawat
Expo Router vs React Navigation: Which One Should You Use in 2026?
Ankur Kumawat
Async Code in Node.js: Callbacks and Promises
Ankur Kumawat
Sessions vs JWT vs Cookies: Understanding Authentication Approaches
Ankur Kumawat
JavaScript Modules: Import and Export Explained
Ankur Kumawat
Array Flatten in JavaScript
Ankur Kumawat
Template Literals in JavaScript
Ankur Kumawat
Storing Uploaded Files and Serving Them in Express
Ankur Kumawat
URL Parameters vs Query Strings in Express.js
Ankur Kumawat
Callbacks in JavaScript: Why They Exist
Ankur Kumawat
The new Keyword in JavaScript
Ankur Kumawat
How Node.js Handles Multiple Requests with a Single Thread
Ankur Kumawat
Setting Up Your First Node.js Application Step-by-Step
Ankur Kumawat
String Polyfills and Common Interview Methods in JavaScript
Ankur Kumawat
Spread vs Rest Operators in JavaScript
Ankur Kumawat
Error Handling in JavaScript: Try, Catch, Finally
Ankur Kumawat
Async/Await in JavaScript: Writing Cleaner Asynchronous Code
Ankur Kumawat
Synchronous vs Asynchronous JavaScript
Ankur Kumawat
Creating Routes and Handling Requests with Express
Ankur Kumawat
JWT Authentication in Node.js Explained Simply
Ankur Kumawat
What is Node.js? JavaScript on the Server Explained
Ankur Kumawat
Handling File Uploads in Express with Multer
Ankur Kumawat
JavaScript Promises Explained for Beginners
Ankur Kumawat