Build a custom TikTok autoplay React Hook with Intersection Observer

Intersection Observer is a JavaScript browser API that enables developers to detect the position of DOM elements relative to the viewport or a specified root element, allowing for features like autoplay and pause in video applications like TikTok, lazy loading, and infinite scrolling. This API triggers a callback function when an observed element's position changes, and developers can customize its behavior using a set of options such as root, rootMargin, and threshold. By creating a custom Hook in React, developers can leverage Intersection Observer to manage video playback based on visibility, ensuring videos play when in view and pause when out of view. The detailed implementation demonstrates setting up a TikTok clone that utilizes this Hook, providing a practical example of how Intersection Observer can enhance application interactivity and performance.