export function isEmptyObject(obj: any) {
  return obj && Object.keys(obj).length === 0 && obj.constructor === Object;
}

export function getYear(date = new Date()) {
  if (!(date instanceof Date)) {
    throw new TypeError('Invalid date object');
  }
  return date.getFullYear();
}

export function debounce<T extends (...args: any[]) => any>(fn: T, delay = 300) {
  let timer: ReturnType<typeof setTimeout>;
  return (...args: Parameters<T>) => {
    if (timer) clearTimeout(timer);
    timer = setTimeout(() => {
      fn(...args);
    }, delay);
  };
}