React DOM Internals

Before diving in this is a continuation of the React 19 Internals series. If you haven’t read the previous part, I’d recommend starting there. That said, if you already understand till the React Elements, you’re good to go — feel free to jump straight in. Let’s start with the foundation: what does React DOM actually do? At its core, React DOM acts as the bridge between React Elements and the Browser DOM. The Entry Point Before we explore how a React Element gets converted into a Fiber node, we n