---
title: "Neha Chopra (@nerdyNeha) | Hashnode"
description: "Developer | Finance writer. Read the latest articles by Neha Chopra on Hashnode."
url: "https://hashnode.com/@nerdyNeha"
---

@nerdyNeha

# Neha Chopra

@nerdyNeha · Karnataka, India · Joined January 2026

Developer | Finance writer

### [Backend behind real time systems](https://nerdyneha.hashnode.dev/backend-behind-real-time-systems?utm_source=hashnode&utm_medium=feed)

How do messages appear instantly in apps? Learn polling, SSE, and WebSockets with simple explanations and real-world use cases.

4 min read · [nerdyneha.hashnode.dev](https://nerdyneha.hashnode.dev/backend-behind-real-time-systems?utm_source=hashnode&utm_medium=feed)

[Apr 22](https://hashnode.com/posts/backend-behind-real-time-systems/69e8ee685d1c1071056f19de)

### [Databases](https://nerdyneha.hashnode.dev/databases?utm_source=hashnode&utm_medium=feed)

This article aims to explain in simple language databases and the difference between relational and non relational databases

5 min read · [nerdyneha.hashnode.dev](https://nerdyneha.hashnode.dev/databases?utm_source=hashnode&utm_medium=feed)

[Apr 8](https://hashnode.com/posts/databases/69d63e40d072e6ec20a86c1d)

### [History and architecture of node.js](https://nerdyneha.hashnode.dev/history-and-architecture-of-node-js?utm_source=hashnode&utm_medium=feed)

In this blog, we deep dive into what led to invention of node.js and how does it works under the hood.

13 min read · [nerdyneha.hashnode.dev](https://nerdyneha.hashnode.dev/history-and-architecture-of-node-js?utm_source=hashnode&utm_medium=feed)

[Mar 28](https://hashnode.com/posts/history-and-architecture-of-node-js/69c7bd037cf27065100aed02)

### [Authentication: Sessions and Tokens](https://nerdyneha.hashnode.dev/authentication-sessions-and-tokens?utm_source=hashnode&utm_medium=feed)

This blog explains the difference between authentication and authorization and in simple language stateless tokens and stateful sessions and how do th

4 min read · [nerdyneha.hashnode.dev](https://nerdyneha.hashnode.dev/authentication-sessions-and-tokens?utm_source=hashnode&utm_medium=feed)

[Mar 23](https://hashnode.com/posts/authentication-sessions-and-tokens/69c16ac630a9b81e3a7804f5)

### [Event Listeners in JavaScript](https://nerdyneha.hashnode.dev/event-listeners-in-javascript?utm_source=hashnode&utm_medium=feed)

A simple guide to JavaScript event listeners. Understand events, addEventListener, event object, bubbling, capturing, and delegation with examples.

7 min read · [nerdyneha.hashnode.dev](https://nerdyneha.hashnode.dev/event-listeners-in-javascript?utm_source=hashnode&utm_medium=feed)

[Mar 21](https://hashnode.com/posts/event-listeners-in-javascript/69be0fc8475ca17974667d82)