@Chetan71

REST API Design Made Simple with Express.js

4d ago · 14 min read · Every time your phone opens Instagram, checks the weather, or processes a payment — an API is working behind the scenes. The front end asks for something, the server responds with data, and the UI ren

The Node.js Event Loop Explained

5d ago · 12 min read · Table of Contents What the Event Loop Is Why Node.js Needs an Event Loop The Call Stack and Task Queue How Async Operations Are Handled Timers vs I/O Callbacks The Event Loop and Scalability

Why Node.js is Perfect for Building Fast Web Applications

5d ago · 11 min read · That bet turned out to be correct. This post isn't about how Node.js works internally — that's a separate topic. This is about when Node.js is the right architectural choice, what kinds of problems it

Map and Set in JavaScript

5d ago · 11 min read · Table of Contents What Is a Map? What Is a Set? Map vs Object — The Real Differences Set vs Array — The Real Differences When to Use Map and Set 1. What Is a Map? A Map is a collection of key-

Async/Await in JavaScript: Writing Cleaner Asynchronous Code

5d ago · 13 min read · async/await was introduced in ES2017 to solve those remaining friction points. It doesn't replace promises. It's built directly on top of them. What it changes is how you write and read asynchronous c