Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Learn RegEx step by step, from zero to advanced.

An enterprise-class UI design language and React UI library

📋 React Hooks for form state management and validation (Web + React Native)

Promise based HTTP client for the browser and node.js

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)

For slim progress bars like on YouTube, Medium, etc

🇨🇳 汉字拼音 ➜ hàn zì pīn yīn

The modern video player for macOS.

A book series (2 published editions) on the JS language.

Essential UI blocks for building mobile web apps.