React-js

React categorizes pending updates into 31 update lanes, each representing different priority levels. React schedules and executes these updates by enqueuing tasks into a task queue that integrates with the JavaScript event loop. It processes updates in small chunks, yielding control back to the browser every 5ms to keep the UI responsive.

Learn how `mountState( )` and `updateState( )` manage state across renders, and why following the rules of hooks—like calling them at the top level and avoiding conditional use, avoid directly calling a component function, asynchronous nature of `setState( )`, etc —is crucial for maintaining consistent state in your components.

In React, events are encapsulated within synthetic events, and instead of attaching event handlers to individual HTML elements, React employs a technique known as event delegation, attaching a single event listener to the root element.

Explore the Virtual DOM in React, the basics of React elements, the role of JSX, and the structure of the fiber node tree.