modern/src/reactHelper.js


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import { useRef, useEffect } from 'react';

export const usePrevious = (value) => {
  const ref = useRef();
  useEffect(() => {
    ref.current = value;
  });
  return ref.current;
};

export const useEffectAsync = (effect, deps) => {
  useEffect(() => {
    effect();
  }, deps);
};