@DSKaushik

What is Middleware in Express and How It Works

1d ago · 4 min read · 1. What is Middleware? At its core, middleware is a function that has access to the Request object (req), the Response object (res), and the next function in the application’s request-response cycle.

Sessions vs JWT vs Cookies: Understanding Authentication Approaches

Apr 17 · 4 min read · 1. The Building Blocks: Cookies, Sessions, and JWTs Before comparing strategies, let's define the tools we use to identify users. What are Cookies? A Cookie is a small piece of data stored directly in

REST API Design Made Simple with Express.js

Apr 16 · 5 min read · In the world of web development, a REST API acts as the bridge between the client (the frontend) and the server (the backend). Think of it as a waiter in a restaurant: you (the client) look at the men

Destructuring in JavaScript

Mar 26 · 3 min read · 1. What Destructuring Means At its core, destructuring is a convenient way to extract data from arrays or objects into distinct variables. Instead of accessing items one by one using indices or dot no

Map and Set in JavaScript

Mar 26 · 3 min read · 1. What is a Map? A Map is a collection of key-value pairs, just like objects — but more powerful. However, the primary difference is that Map allows keys of any type—including functions, objects, and