useUpdateEffect.ts

import * as React from 'react';

/**
 * Like useEffect but called only on updates.
 */
export function useUpdateEffect(
  effect: React.EffectCallback,
  deps?: ReadonlyArray<any>,
): void {
  const mounted = React.useRef(false);

  React.useEffect(() => {
    if (!mounted.current) {
      mounted.current = true;
    } else {
      effect();
    }
  }, deps);
}