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Ujjwal Kar (@ujjwalkar21) | Hashnode

@ujjwalkar21

Ujjwal Kar

@ujjwalkar21

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Versatile Software Engineer specializing in Full Stack Development with a proficiency in executing Data Science projects.

Kolkata, IndiaJoined November 2023

About

Associate Software Engineer with expertise in Full Stack Development and hands-on experience in executing Data Science projects. Seeking opportunities to apply and enhance knowledge in real-world problems.

Ujjwal Kar's blogs

Ujjwal Karujjwalkar.hashnode.dev3 posts

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Ujjwal Kar's blogs

Ujjwal Karujjwalkar.hashnode.dev3 posts

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ujjwalkar.hashnode.dev

Dependency Injection Finally Made Sense When I Stopped Thinking Like a Developer

1. Introduction For a long time, Dependency Injection (DI) felt unnecessary to me. I kept asking myself: “Why am I writing an extra interface when I still have to write the implementation?” Isn’t that just… overengineering? This question is surpris...

Feb 14·3 min read

ujjwalkar.hashnode.dev

🧠 JavaScript Hoisting Explained Simply (With Examples)

Introduction to JavaScript Hoisting JavaScript hoisting is a quirky concept that can easily trip up beginners. It's one of those behaviors in the language that you must see to believe. But once you understand what hoisting is and how it works under t...

Jun 10, 2025·5 min read

ujjwalkar.hashnode.dev

Avoid this 10 common mistakes React Developers while writing useState.

In this simple guide, we dive into the useState hook in React and identify the 10 most frequent mistakes developers encounter. Whether you’re experienced or just starting, knowing these mistakes can help you write better code. From setting up useStat...

Nov 26, 2024·2 min read