Function useEvent

packages/ra-core/src/util/useEvent.ts:14–26

(
    fn: (...args: Args) => Return
)

 * @see https://github.com/facebook/react/issues/14099#issuecomment-440013892
 */
export const useEvent = <Args extends unknown[], Return>(
    fn: (...args: Args) => Return
): ((...args: Args) => Return) => {
    const ref = React.useRef<(...args: Args) => Return>(() => {
        throw new Error('Cannot call an event handler while rendering.');
    });

    useLayoutEffect(() => {
        ref.current = fn;
    });

    return useCallback((...args: Args) => ref.current(...args), []);
};