katanakit-js / useObserverCreate

Function: useObserverCreate()

function useObserverCreate(
   key, 
   callback, 
   options?, 
   autoUnobserve?
): void;

Defined in: src/infrastructure/observer/observer.service.ts:70

Creates an IntersectionObserver under the given key. If an observer with the same key already exists, it is disconnected first.

Parameters

Parameter	Type	Default value	Description
key	string	undefined	A unique identifier for this observer.
callback	ObserverCallback	undefined	Invoked when an observed element enters the viewport.
options	IntersectionObserverInit	...	IntersectionObserver options (default: { threshold: 0.1 }).
autoUnobserve	boolean	true	Whether to automatically unobserve after first intersection (default: true).

Returns

void

Example

useObserverCreate("hero", (entry) => {
  console.log("Hero is visible!", entry.target);
}, { threshold: 0.5 });