--- title: "Didact: a DIY guide to build your own React" url: https://daily.dev/posts/didact-a-diy-guide-to-build-your-own-react-jt20aep9u source_url: https://medium.com/hexacta-engineering/didact-learning-how-react-works-by-building-it-from-scratch-51007984e5c5 type: article source: "Rodrigo Pombo" published: 2026-03-31T12:30:09.969Z updated: 2026-03-31T12:58:20.095Z tags: ["javascript", "react", "jsx"] reading_time: 2 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Didact: a DIY guide to build your own React **[Rodrigo Pombo](https://daily.dev/sources/pomb)** · 2 min read · 0 upvotes · 0 comments ## Summary A DIY tutorial series that walks through building a simplified version of React from scratch in under 200 lines of code, covering DOM rendering, JSX, virtual DOM, reconciliation, components, state, and fiber-based incremental reconciliation. The goal is to deepen understanding of how React works internally by reimplementing its core features step by step. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#javascript](https://daily.dev/tags/javascript), [#react](https://daily.dev/tags/react), [#jsx](https://daily.dev/tags/jsx) [View this post on daily.dev](https://daily.dev/posts/didact-a-diy-guide-to-build-your-own-react-jt20aep9u)