import { useRef } from 'react';
import useEffectOnce from './useEffectOnce';
var useUnmount = function (fn) {
    var fnRef = useRef(fn);
    // update the ref each render so if it change the newest callback will be invoked
    fnRef.current = fn;
    useEffectOnce(function () { return function () { return fnRef.current(); }; });
};
export default useUnmount;