@Sudhanshu17

URL Parameters vs Query Strings in Express.js

May 7 · 6 min read · 1) What URL parameters are URL parameters are extra values added to a URL to pass information to a webpage or API. Parameters help send data through the URL They either identify something or modify/

Storing Uploaded Files and Serving Them in Express

May 5 · 6 min read · 1) Where Uploaded Files Are Stored Uploaded files are stored on the server or external storage, depending on how your app is designed. Common Storage Options 1) Local Server Storage (Most Basic) Files

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

May 5 · 6 min read · 1) What sessions are 🔐 What Sessions Are (Simple Explanation) A session is a way for a server to remember a user between requests. HTTP is stateless by default, meaning: 👉 Every request is independe

Async Code in Node.js: Callbacks and Promises

Apr 25 · 7 min read · 1) Why Async Code Exists in Node.js (with File Reading Scenario) Imagine your program needs to read a file. This takes time. If Node.js waits for the file to fully load before doing anything else, the

String Polyfills and Common Interview Methods in JavaScript

Apr 23 · 10 min read · 1) What are String Methods? String methods are built-in functions provided by programming languages (like JavaScript) that help you work with and manipulate text (strings) easily. A string is basicall