---
title: "ABHISHEK KUMAR (@dev-abhishek) | Hashnode"
description: "enginner. Read the latest articles by ABHISHEK KUMAR on Hashnode."
url: "https://hashnode.com/@dev-abhishek"
---

@dev-abhishek

# ABHISHEK KUMAR

@dev-abhishek · India · Joined January 2025

enginner

### [Understanding this in JavaScript: Who Is Calling?](https://understanding-this-keyword-in-js.hashnode.dev/understanding-this-in-javascript-who-is-calling?utm_source=hashnode&utm_medium=feed)

Who is this for? If this in JavaScript has ever confused you — sometimes it is the object, sometimes it is the window, sometimes it is undefined — this guide breaks it down simply using one core idea

14 min read · [understanding-this-keyword-in-js.hashnode.dev](https://understanding-this-keyword-in-js.hashnode.dev/understanding-this-in-javascript-who-is-calling?utm_source=hashnode&utm_medium=feed)

[May 1](https://hashnode.com/posts/understanding-this-in-javascript-who-is-calling/69f456b6909e64ad079763ff)

### [Spread and Rest Operators in JavaScript: Expand and Collect with ...](https://spread-vs-rest-operators-in-js-understanding.hashnode.dev/spread-and-rest-operators-in-javascript-expand-and-collect-with?utm_source=hashnode&utm_medium=feed)

Who is this for? If you have seen ... in JavaScript code and wondered what it means — or why the same three dots seem to do completely different things in different places — this guide explains everyt

14 min read · [spread-vs-rest-operators-in-js-understanding.hashnode.dev](https://spread-vs-rest-operators-in-js-understanding.hashnode.dev/spread-and-rest-operators-in-javascript-expand-and-collect-with?utm_source=hashnode&utm_medium=feed)

[May 1](https://hashnode.com/posts/spread-and-rest-operators-in-javascript-expand-and-collect-with/69f454b0909e64ad0795d7af)

### [JavaScript Objects Explained: Store and Organise Real-World Data](https://understanding-objects-in-js-example.hashnode.dev/javascript-objects-explained-store-and-organise-real-world-data?utm_source=hashnode&utm_medium=feed)

Who is this for? If you understand variables and arrays and want to learn how to group related data together in a meaningful way — this guide walks you through JavaScript objects from scratch with pra

15 min read · [understanding-objects-in-js-example.hashnode.dev](https://understanding-objects-in-js-example.hashnode.dev/javascript-objects-explained-store-and-organise-real-world-data?utm_source=hashnode&utm_medium=feed)

[May 1](https://hashnode.com/posts/javascript-objects-explained-store-and-organise-real-world-data/69f4535b909e64ad0794c905)

### [Variables and Data Types in JavaScript: Your First Step to Writing Real Code](https://under-standing-variables-and-data-types-in-javascript.hashnode.dev/variables-and-data-types-in-javascript-your-first-step-to-writing-real-code?utm_source=hashnode&utm_medium=feed)

JavaScript Variables Explained for Beginners: var, let, const, and Data Types

18 min read · [under-standing-variables-and-data-types-in-javascript.hashnode.dev](https://under-standing-variables-and-data-types-in-javascript.hashnode.dev/variables-and-data-types-in-javascript-your-first-step-to-writing-real-code?utm_source=hashnode&utm_medium=feed)

[Apr 30](https://hashnode.com/posts/variables-and-data-types-in-javascript-your-first-step-to-writing-real-code/69f2f037124bcf782af6e352)

### [The new Keyword in JavaScript: How Objects Are Created](https://the-new-keyword-in-js.hashnode.dev/the-new-keyword-in-javascript-how-objects-are-created?utm_source=hashnode&utm_medium=feed)

Who is this for? If you have seen new in JavaScript code and wondered what it actually does behind the scenes — or if you want to understand how objects are built from constructor functions — this gui

14 min read · [the-new-keyword-in-js.hashnode.dev](https://the-new-keyword-in-js.hashnode.dev/the-new-keyword-in-javascript-how-objects-are-created?utm_source=hashnode&utm_medium=feed)

[Apr 30](https://hashnode.com/posts/the-new-keyword-in-javascript-how-objects-are-created/69f2ed9e124bcf782af43e85)