Build your own React
summary
A simplified React is implemented step by step (eight explicit steps) into a tiny library that renders jsx, builds a fiber tree, performs reconciliation with placement/update/delete effect tags, and implements hooks and state. It uses requestIdleCallback to split work into units, preserves alternates for diffing, updates and removes DOM nodes on commit, supports event listeners, and runs a working counter demo so the build actually functions.
AI-written summary · about
chapters (7)
- 0:00Intro
- 0:31Warmup
- 2:44Create Element
- 9:00Perform Unit of Work
- 14:50Compare Fibers
- 18:48Function Component
- 21:30State Component








