@inkline/paper/react/watch.mjs

Paper is a unified interface for defining components for Vue and React using a single code base.

import { useEffect, useRef } from "react";
export const watch = (dependency, callback) => {
  const mounted = useRef(false);
  useEffect(() => {
    if (!mounted.current) {
      mounted.current = true;
      return;
    }
    callback(dependency());
  }, [dependency()]);
};