# BetaSu/just-react

「React技术揭秘」  一本自顶向下的React源码分析书

Repository: https://github.com/BetaSu/just-react
Canonical: https://ross.abutalabs.com/products/just-react
Homepage: https://react.iamkasong.com/
Language: JavaScript
License: MIT
License Family: permissive
Topics: react, reactjs, source-code, fiber, hooks
Last push: 2025-03-10T22:29:30+00:00

## Health v2 (maintenance only)
Score: 37/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 10, release rhythm 35, longevity 100
- inputs: {"age_days": 2286, "days_push": 541, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6391, forks 553 (observed 2026-08-28T04:09:43.032335+00:00)

## What it is
An open-source online book (in Chinese) that analyzes React's source code top-down, from its design philosophy through the Fiber architecture to concrete implementation details like Diff, state updates, Hooks, and Concurrent Mode. It is regularly updated to track new React versions and includes an introductory video and community discussion group.

## Use cases
- understand how React Fiber works internally
- learn React source code architecture
- study how React Hooks are implemented
- understand React's diff algorithm and state update flow
- prepare for React framework-level interviews
- learn concurrent rendering and the lane model

## When to choose
- you want a structured, top-down explanation of React internals
- you prefer reading a free, regularly updated book with references
- you already know React usage and want to go deeper into the source

## When to avoid
- you need beginner React tutorials or basic usage guides
- you cannot read Chinese and machine translation is not acceptable
- you want a hands-on build-from-scratch course rather than source analysis

## Facets
- artifact type: learning-resource
- maturity: active
- function: developer-tools, documentation
- domain: frontend, web-development, tutorials
- platform: -
- tags: react, react-source-code, fiber-architecture, hooks, concurrent-mode, open-source-book, chinese, web

## Member repositories
- BetaSu/just-react (main) score 37

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:43.032335+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:45:03.146887+00:00, confidence not recorded.
  - readme: https://github.com/BetaSu/just-react (fetched 2026-08-28T04:09:43.032335+00:00, sha 13adbbcdd81c)
  - homepage: https://react.iamkasong.com/ (fetched 2026-08-29T08:44:27.695662+00:00, sha 0f008e31338b)
- Data as of 2026-08-30T08:39:29.467469+00:00.