Coolhead

Pratik Sharma

Full Stack developer from New Delhi, India. Helping startups, bloggers and artists to build their ideas.

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Jun 10, 2026

Best Delhi Metro App Download: Top 10 Apps for Route Planning, Tickets, and Smart Cards

If you are searching for the best Delhi Metro app download, you probably want one of three things:

Draw Japan Flag Using TSL - Threejs Shading language

Learn More about the japanese Flag → https://en.wikipedia.org/wiki/Flag\of\Japan

Dec 19, 2025 threejs

Improve Your Website Web Vitals

Core Web Vitals metrics →

Dec 16, 2025 programming

Understanding npm link and Its Better Alternative in pnpm

If you’ve ever built multiple JavaScript packages that depend on each other, you’ve probably used — or at least heard of — npm link. It’s a handy tool that lets you work on a libra

Oct 26, 2025 javascript

Latest Posts

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Friends as Mentors - Making Mistakes in adulthood

Irrespective of your age. You will make mistakes. As a serious person, who really regrets when something goes wrong. Like I would have nightmares of my mistakes. This has become an

Oct 7, 2025

Creating Vector Search with TiDB Serverless and Drizzle

Vector Search has become highly popular with RAG Systems. In this blog we will learn how we can use the TiDB serverless library to connect with our Database, create schema in drizz

Sep 29, 2025 vectorsearch

Best PDF Parsers for RAG Applications

Overcoming PDF Hell

Sep 22, 2025 ai

How to add NProgess/Youtube loading bar in tanstack start

Install the library from npm:

Sep 8, 2025 reactjs

The CAP Theorem for Marketing

Cap Theorem

Jul 22, 2025 marketing

Learning Through Pain Points

I remember when i first got into web dev. I realised that i can search my queries and get the answers. But once you are into the rabbit hole of debugging, you do learn a lot and st

Jun 5, 2025 programming-blogs

🏷 How to Build a Custom Badge Web Component with Theme, Size, RTL Support, and Icons

Badges are small UI elements that provide contextual hints, often used to represent statuses, counts, or metadata. In this article, we’ll walk through how to create a modern, custo

May 26, 2025 javascript

System Design: Build your own Calendar

This is about me learning/preparing for System Design while creating an Calendar app. Blog is not written as a tutorial but more like an personal guide.

May 17, 2025

Web Workers vs Service Workers vs Worklets

What are Web Workers?

May 17, 2025 programming

Creating a Performant Rectangle Selection Box with Callbacks Using Web Components

In this article, you'll learn how to create a performant rectangle selection box using web components and JavaScript. The objective is to build an interactive tool that allows user

Feb 7, 2025 javascript

CSS Animation Performance - CheatSheet

Here’s a comprehensive table of CSS properties categorized by their impact on browser rendering performance, specifically focusing on Layout, Paint, and Composite:

Feb 7, 2025 css

10 Exciting Web Trends to Watch in 2025

1. Web GPU

Jan 5, 2025 javascript