How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router
Omkar Gupta
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57 posts published so far
Expo Router vs React Navigation-Which One Should You Use in 2026?
Omkar Gupta
How React Virtual DOM Works Under the Hood
Omkar Gupta
Setting Up Your First Node.js Application — Step by Step
Omkar Gupta
Callbacks in JavaScript: Why They Exist
Omkar Gupta
The `new` Keyword in JavaScript — Explained Simply
Omkar Gupta
URL Parameters vs Query Strings in Express.js
Omkar Gupta
Storing Uploaded Files and Serving Them in Express
Omkar Gupta
Sessions vs JWT vs Cookies: Understanding Authentication Approaches
Omkar Gupta
Template Literals in JavaScript — Say Goodbye to Messy String Concatenation
Omkar Gupta
Array Flatten in JavaScript — A Simple Guide
Omkar Gupta
JavaScript Modules: Import and Export Explained
Omkar Gupta
String Polyfills and Common Interview Methods in JavaScript
Omkar Gupta
Spread vs Rest Operators in JavaScript
Omkar Gupta
Error Handling in JavaScript: Try, Catch, Finally
Omkar Gupta
Async/Await in JavaScript: Writing Cleaner Asynchronous Code
Omkar Gupta
Synchronous vs Asynchronous JavaScript
Omkar Gupta
Creating Routes & Handling Requests with Express.js
Omkar Gupta
How Node.js Handles Multiple Requests with a Single Thread
Omkar Gupta
JWT Authentication in Node.js Explained Simply
Omkar Gupta
Handling File Uploads in Express with Multer
Omkar Gupta
What is Node.js? JavaScript on the Server Explained
Omkar Gupta
JavaScript Promises Explained for Beginners
Omkar Gupta
What is Middleware in Express and How It Works
Omkar Gupta
Destructuring in JavaScript
Omkar Gupta