Have you ever read the source code of a popular library and come across comments which explain what the code is doing? Sometimes the explanation given is straightforward but other times it leaves you scratching your head. …

An overview of the fiber architecture used in React, and how it is used to manage the DOM — ReactDOM is an object which exposes a number of top-level APIs to interact with the browser DOM. According to the docs, it provides ‘DOM-specific methods that can be used at the top level of your app and as an escape hatch to get outside of the React model if…