Hey! I'm Helder

I build modern web apps with React and TypeScript, sharing insights on architecture, front-end engineering, and best practices for scalable development.

2026

May 14, 2026Code Got Cheap. Review Didn't.
May 12, 2026MigFlow: Contracts for AI Migrations
Apr 09, 2026Skills Are the New CLI
Apr 06, 2026Why I Built TracerKit
Mar 26, 2026How I Use Claude Code to Build Features
Mar 24, 2026AI Writes Code. You Own Quality.
Mar 19, 2026Claude Code Hooks
Feb 13, 2026Building Shareable AI Agent Skills
Feb 09, 2026What Your Claude Code Agents Don't Need to Be Told
Feb 06, 2026Teaching Claude Code Your Standards

2024

Nov 08, 2024Code Review your Own Pull Requests
Nov 07, 2024My Go-To Apps and Tools for 2024

2023

Mar 04, 2023Polymorphism with React
Feb 26, 2023Integrating TLDR with FZF
Feb 21, 2023Manipulating the DOM with React Ref
Feb 21, 2023Effects with React useEffect
Feb 01, 2023Controlled vs Uncontrolled Elements

2021

Nov 10, 2021ReactJS Tips & Tricks: Avoid Nested Render Functions
Nov 07, 2021ReactJS Tips & Tricks: Avoid Short-Circuit Conditional UI Rendering
Nov 02, 2021Generating a Dictionary from a List using TypeScript
Oct 30, 2021Structuring a better README for your projects
Oct 17, 2021Why Software Testing?
Feb 26, 2021Upgrade Husky to Latest Version
Feb 17, 2021Studying Software Development with Videos and Note-Taking

2020

Dec 06, 2020How to Implement Stack Data Structure in JavaScript
Sep 10, 2020Patterns for Writing Better Git Commit Messages
Apr 02, 2020How to Avoid Array Mutation
Mar 08, 2020Write your own Dotfiles
Feb 03, 2020Understanding concepts of functional programming with JavaScript

2019

Jun 24, 2019Exploring the bind method in JavaScript
Jun 22, 2019Decoding Proxies in JavaScript
Jun 18, 2019Simplify JavaScript Arrays
Jun 16, 2019What is a Pure Function?