Master programming by recreating your favorite technologies from scratch.

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

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

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

Coding articles to level up your development skills

📚 免费的计算机编程类中文书籍，欢迎投稿

Papers from the computer science community to read and discuss.

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

📜 33 JavaScript concepts every developer should know.

30 days of JavaScript programming challenge is a step-by-step guide to learn JavaScript programming language in 30 days. This challenge may take more than 100 days, please just follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

A simple and easy-to-use library to enjoy videogames programming

120+ interactive Python coding interview challenges (algorithms and data structures). Includes Anki flashcards.

A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

If you want to become good at AI engineering & system design, join this newsletter 👇

30 Days of React challenge is a step by step guide to learn React in 30 days. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

Python programs, usually short, of considerable difficulty, to perfect particular skills.

💥 A Lodash-style Go library based on Go 1.18+ Generics (map, filter, contains, find...)

💻 vibe coding 101｜The first course for AI-native product builders.

List of Data Science Cheatsheets to rule the world