https://v7-7-1.vueuse.org/core/useintersectionobserver/
useIntersectionObserver | VueUse
Collection of essential Vue Composition Utilities
useintersectionobservervueuse
https://usehooks.com/useintersectionobserver
useIntersectionObserver React Hook – useHooks
Track and manage the visibility of your DOM elements within the viewport with useIntersectionObserver.
useintersectionobserverreacthook