export function debounce<T extends (...args: any[]) => void>(
  fn: T,
  delay: number
) {
  let timeoutId: NodeJS.Timer | undefined;
  return (...args: Parameters<T>) => {
    if (timeoutId) {
      clearTimeout(timeoutId);
    }
    timeoutId = setTimeout(() => {
      fn(...args);
      timeoutId = undefined;
    }, delay);
  };
}

export function ts() {
  return new Date().getTime();
}