| 1 | /**
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| 2 | * Setup an [`IntersectionObserver`](https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver) on
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| 3 | * a DOM Element that returns it's entries as they arrive.
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| 4 | *
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| 5 | * @param element The DOM element to observe
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| 6 | * @param init IntersectionObserver options with a notable change,
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| 7 | * unlike a plain IntersectionObserver `root: null` means "not provided YET",
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| 8 | * and the hook will wait until it receives a non-null value to set up the observer.
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| 9 | * This change allows for easier syncing of element and root values in a React
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| 10 | * context.
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| 11 | */
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| 12 | declare function useIntersectionObserver<TElement extends Element>(element: TElement | null | undefined, options?: IntersectionObserverInit): IntersectionObserverEntry[];
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| 13 | /**
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| 14 | * Setup an [`IntersectionObserver`](https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver) on
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| 15 | * a DOM Element. This overload does not trigger component updates when receiving new
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| 16 | * entries. This allows for finer grained performance optimizations by the consumer.
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| 17 | *
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| 18 | * @param element The DOM element to observe
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| 19 | * @param callback A listener for intersection updates.
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| 20 | * @param init IntersectionObserver options with a notable change,
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| 21 | * unlike a plain IntersectionObserver `root: null` means "not provided YET",
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| 22 | * and the hook will wait until it receives a non-null value to set up the observer.
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| 23 | * This change allows for easier syncing of element and root values in a React
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| 24 | * context.
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| 25 | *
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| 26 | */
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| 27 | declare function useIntersectionObserver<TElement extends Element>(element: TElement | null | undefined, callback: IntersectionObserverCallback, options?: IntersectionObserverInit): void;
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| 28 | export default useIntersectionObserver;
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