Day Two
summary
Walks through building a tiny React clone that actually renders: built a 177-line renderer that turns JSX into fibers, implements a work loop, reconciles then commits, and swaps roots with a createRoot API. Shows concrete tools and tricks: implements requestIdleCallback time-slicing, a hook-based useState, and a Suspense demo backed by a dark land API. Measures latency with Chrome profiler and demos a real speed win; code and sources are explicit so the talk is about how it’s built and whether it works, not vague concepts.
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