import { EffectCallback, DependencyList } from 'react'; /** * Runs a layout effect only when the dependencies have changed, skipping the * initial "on mount" run. Caution, if the dependency list never changes, * the effect is **never run** * * ```ts * const ref = useRef(null); * * // focuses an element only if the focus changes, and not on mount * useUpdateLayoutEffect(() => { * const element = ref.current?.children[focusedIdx] as HTMLElement * * element?.focus() * * }, [focusedIndex]) * ``` * @param effect An effect to run on mount * * @category effects */ declare function useUpdateLayoutEffect(fn: EffectCallback, deps: DependencyList): void; export default useUpdateLayoutEffect;