Create a table of contents with highlighting in React

The tutorial provides a detailed guide on creating a sticky table of contents (TOC) in a React application, which dynamically lists and highlights the headings of a page as users scroll through the content. Emphasizing familiarity with React, React Hooks, and Node.js, it outlines the process from setting up a React environment to implementing a TOC component that uses the Intersection Observer API to detect and highlight active headings. The tutorial explains how to link TOC items to their corresponding sections using anchor tags, create a hierarchy of headings, and style them with CSS. It also discusses potential drawbacks, such as the lack of a standardized implementation across different sites, which may require users to learn how each TOC operates. Additionally, it highlights the benefits of enhancing user experience by allowing easy navigation through articles or documentation, despite the challenges of varying spacing between headings.