How does React really work? Let's find out. We'll write a simplified version of React from scratch, based on the real source code, including: jsx, fibers, reconciliation, hooks, and more.

jsday 2019 | Verona, May 8-9th  | http://www.jsday.it 

Next edition: May 12-13th 2020 | https://jsday-2020.eventbrite.it

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Rodrigo Pombo

A conference talk transcript from jsday 2019 where Rodrigo Pombo walks through building a simplified React clone called 'Didact' from scratch in 8 incremental steps. The talk covers implementing createElement, a basic render function, the fiber tree data structure for non-blocking rendering using requestIdleCallback, reconciliation for updates and deletions, function component support, event handling, and a basic useState hook implementation. The goal is to help developers build a mental model of how React works internally.

Rodrigo Pombo - Build your own React - jsday 2019