# BetaSu/big-react

跟着我，从0实现React18

Repository: https://github.com/BetaSu/big-react
Canonical: https://ross.abutalabs.com/products/big-react
Homepage: https://qux.xet.tech/s/2wiFh1
Language: TypeScript
License Family: other
Topics: react, reactjs
Last push: 2025-06-05T14:14:58+00:00

## Health v2 (maintenance only)
Score: 44/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 25, release rhythm 35, longevity 100
- inputs: {"age_days": 2427, "days_push": 454, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3900, forks 409 (observed 2026-08-28T04:08:28.568844+00:00)

## What it is
An educational project that reimplements the core of React 18 from scratch in TypeScript, structured as a series of Git tags marking each incremental feature. It closely mirrors the real React source code and passes a growing subset of official React test cases.

## Use cases
- learn how React 18 works internally
- understand the React reconciler and fiber architecture
- study how to build a frontend framework from scratch
- follow a step-by-step React implementation tutorial
- explore JSX transformation and DOM rendering internals
- prepare for frontend framework interview questions

## When to choose
- you want to deeply understand React's internals rather than just use it
- you prefer learning by reading a minimal, readable reimplementation
- you want incremental Git tags showing how each feature was built

## When to avoid
- you need a production-ready React replacement
- you just want to build apps with React
- you need full React feature coverage or stability guarantees
- you require a licensed, maintained library for production use

## Facets
- artifact type: learning-resource
- maturity: active
- function: frontend-framework, developer-tools, testing
- domain: frontend, web-development, tutorials, programming-languages
- platform: browser
- tags: react-internals, react18, educational, reimplementation, monorepo, tutorial, typescript, nodejs

## Member repositories
- BetaSu/big-react (main) score 44

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:28.568844+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 2026-08-29T18:25:11.050672+00:00, confidence not recorded.
  - readme: https://github.com/BetaSu/big-react (fetched 2026-08-28T04:08:28.568844+00:00, sha ef5e25698e11)
- Data as of 2026-08-30T08:39:29.467469+00:00.