@restart/hooks/lib/useRafInterval.js

A set of utility and general-purpose React hooks.

import { useEffect } from 'react';
import useCommittedRef from './useCommittedRef.js';
function useRafInterval(fn, ms, paused = false) {
  let handle;
  let start = new Date().getTime();
  const fnRef = useCommittedRef(fn);
  // this ref is necessary b/c useEffect will sometimes miss a paused toggle
  // orphaning a setTimeout chain in the aether, so relying on it's refresh logic is not reliable.
  const pausedRef = useCommittedRef(paused);
  function loop() {
    const current = new Date().getTime();
    const delta = current - start;
    if (pausedRef.current) return;
    if (delta >= ms && fnRef.current) {
      fnRef.current();
      start = new Date().getTime();
    }
    cancelAnimationFrame(handle);
    handle = requestAnimationFrame(loop);
  }
  useEffect(() => {
    handle = requestAnimationFrame(loop);
    return () => cancelAnimationFrame(handle);
  }, []);
}
export default useRafInterval;