Created
July 16, 2023 12:41
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Add Infinite Scrolling to your ReactJS Projects using Intersection Observer
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| import { DependencyList, useCallback, useRef } from "react" | |
| export default function useIntersectionObserver<T extends HTMLElement>( | |
| callback: () => void, | |
| deps: DependencyList | |
| ) { | |
| const observer = useRef<IntersectionObserver | null>(null) | |
| const ref = useCallback( | |
| (node: T) => { | |
| if (deps.every(Boolean)) { | |
| observer.current?.disconnect() | |
| observer.current = new IntersectionObserver((entries) => { | |
| if (entries[0].isIntersecting) callback() | |
| }) | |
| if (node) observer.current.observe(node) | |
| } | |
| }, | |
| [deps, callback] | |
| ) | |
| return ref | |
| } |
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good job bro