---
title: "Pankaj kumar (@pankaj4391) | Hashnode"
description: "Pankaj kumar (@pankaj4391) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@pankaj4391"
---

@pankaj4391

# Pankaj kumar

@pankaj4391 · Joined January 2026

### [Linux File System Hunting](https://leanwithpankaj.hashnode.dev/linux-file-system-hunting?utm_source=hashnode&utm_medium=feed)

Linux is not a single monolithic black box that run on magic, Linux is a collection of independent and purposeful smaller systems moving in unison and appears like one unified structure. To really und

7 min read · [leanwithpankaj.hashnode.dev](https://leanwithpankaj.hashnode.dev/linux-file-system-hunting?utm_source=hashnode&utm_medium=feed)

[Apr 22](https://hashnode.com/posts/linux-file-system-hunting/69e90032bca83cce6c5c7557)

### [JavaScript Array Methods](https://leanwithpankaj.hashnode.dev/javascript-array-methods?utm_source=hashnode&utm_medium=feed)

JavaScript Array Methods Every Beginner Must Know Arrays are one of the most important data structures in JavaScript. When working with lists of data (numbers, names, products, etc.), JavaScript provi

4 min read · [leanwithpankaj.hashnode.dev](https://leanwithpankaj.hashnode.dev/javascript-array-methods?utm_source=hashnode&utm_medium=feed)

[Mar 15](https://hashnode.com/posts/javascript-array-methods/69b6ca1cf4eb2f8b0499cfc0)

### [The Magic of this, call(), apply(), and bind() in JavaScript](https://leanwithpankaj.hashnode.dev/the-magic-of-this-call-apply-and-bind-in-javascript?utm_source=hashnode&utm_medium=feed)

Understanding this is very important in JavaScript because it tells us which object is executing the function. In this guide we will learn: What this means this inside normal functions this inside

4 min read · [leanwithpankaj.hashnode.dev](https://leanwithpankaj.hashnode.dev/the-magic-of-this-call-apply-and-bind-in-javascript?utm_source=hashnode&utm_medium=feed)

[Mar 15](https://hashnode.com/posts/the-magic-of-this-call-apply-and-bind-in-javascript/69b6c9c6f4eb2f8b04997cd1)

### [Understanding Object-Oriented Programming in JavaScript](https://leanwithpankaj.hashnode.dev/understanding-object-oriented-programming-in-javascript?utm_source=hashnode&utm_medium=feed)

As programs grow bigger, managing code becomes harder.To organize code better, JavaScript supports Object-Oriented Programming (OOP). OOP helps us structure code using objects and classes, making prog

5 min read · [leanwithpankaj.hashnode.dev](https://leanwithpankaj.hashnode.dev/understanding-object-oriented-programming-in-javascript?utm_source=hashnode&utm_medium=feed)

[Mar 15](https://hashnode.com/posts/understanding-object-oriented-programming-in-javascript/69b6c998f4eb2f8b04994bd7)

### [Understanding Objects in JavaScript](https://leanwithpankaj.hashnode.dev/understanding-objects-in-javascript?utm_source=hashnode&utm_medium=feed)

In JavaScript, objects are used to store related information together. They help us represent real-world entities like: a person a student a car a product Instead of storing data in many separat

5 min read · [leanwithpankaj.hashnode.dev](https://leanwithpankaj.hashnode.dev/understanding-objects-in-javascript?utm_source=hashnode&utm_medium=feed)

[Mar 15](https://hashnode.com/posts/understanding-objects-in-javascript/69b6c96af4eb2f8b04991b1a)