- Name: Haegul Pyun
- Location: Seoul, Republic of Korea
I’m a developer passionate about functional programming, JavaScript/TypeScript, and open-source. I enjoy solving problems, building tools and libraries, and contributing to developer communities.
- Build open-source libraries and tools, especially in JS/TS ecosystem
- Maintain and contribute to translation/localization efforts (e.g., React documentation)
- Share articles, thoughts, and code on developer topics
- Collaborate with teams, mentor others, and drive best practices
Here are a few of my public repositories you might find interesting:
- ko.react.dev – Korean translation of React documentation.
- FxTS – A functional programming library for TypeScript/JavaScript.
- axios‑logger – Beautify axios logging messages
- Functional programming (FP) & TypeScript
- JavaScript/Node.js libraries & tooling
- Web & frontend ecosystems (React, etc.)
- Open-source community, localization & documentation
- Developer experience (DX), code clarity, maintainable architecture
Thanks for visiting!
Let’s build something great together 🌟




