export const throttle = <T extends (...args: unknown[]) => void>(
  fn: T,
  delay = 300,
) => {
  let last = 0;
  let timeout: ReturnType<typeof setTimeout> | null = null;

  return (...args: Parameters<T>) => {
    const now = Date.now();
    const remaining = delay - (now - last);
    if (remaining <= 0) {
      last = now;
      fn(...args);
    } else if (!timeout) {
      timeout = setTimeout(() => {
        last = Date.now();
        timeout = null;
        fn(...args);
      }, remaining);
    }
  };
};

// Usage
const throttledScroll = throttle(() => {
  console.log('Scrolled!');
}, 100);

window.addEventListener('scroll', throttledScroll);