Javascript With Harsh

Write

Optimizing JavaScript Arrays: Packed vs Holey Arrays

Oct 15, 20246 min read

Understanding Lexical Scoping and Closures in JavaScript

Oct 5, 20245 min read

Build Your Own CLI Word Counter in Node.js

Have you ever wanted to build your own Command Line Interface (CLI) tool? In this Blog, I’ll create a simple CLI app in Node.js that counts the number of words in a file. Along the way, we’ll explore how Node.js handles command-line arguments with pr...

Aug 17, 20254 min read

Introduction to Getters and Setters In Javascript

Oct 2, 20245 min read

Deep Dive into JavaScript Objects: Property Descriptors, Object.create(), and Iteration

Sep 30, 20244 min read

Bind() in javascript

In this post, we’ll dive into how the this keyword behaves when used in event listeners and how to properly bind it in JavaScript, especially with classes. We'll use a simple example to demonstrate the concepts. Setting the Stage Let’s start with a b...

Sep 29, 20244 min read

Understanding JavaScript Classes: Behind the Scenes

In JavaScript, classes provide a neat and organized way to define objects and their behaviors. However, before ES6 introduced classes, everything was done using functions and prototypes. Let's dive into how classes work and what happens behind the sc...

Sep 6, 20244 min read

Understanding call and this in JavaScript

In JavaScript, the this keyword provides a reference to the current execution context. However, when functions are nested, determining the correct this context can be challenging. Let’s explore this concept with a detailed example. Nested Functions a...

Jul 28, 20243 min read

Prototype in JavaScript

Understanding Prototypal Behavior : When you write the following code in the browser console : const newHero = ["hulk", "spiderman"]; Pressing enter gives undefined because we haven't returned anything; we've simply declared an array and stored it i...

Jul 23, 20248 min read

Object Oriented Programming in JavaScript

First of all, a question arises: are there classes in JavaScript? Historically, JavaScript did not have classes. Technically, even now, there are no traditional classes as seen in other programming languages. However, if you Google it, some articles ...

Jul 20, 20245 min read

Understanding the Fetch API in JavaScript

The Fetch API provides a modern, efficient, and powerful way to make HTTP requests and process responses in JavaScript. It is a significant improvement over the older XMLHttpRequest method. What is Fetch API? The Fetch API offers a JavaScript interf...

Jul 18, 20243 min read

Command Palette

Latest articles