/**
 * 防抖函数
 * @param fn 函数
 * @param delay 延迟时间
 * @returns
 */
const debounce = <T extends (...args: any[]) => any>(fn: T, delay: number) => {
  let timer: ReturnType<typeof setTimeout> | null = null;
  return function (this: any, ...args: Parameters<T>) {
    if (timer !== null) clearTimeout(timer);
    timer = setTimeout(() => {
      fn.apply(this, args);
      timer = null;
    }, delay);
  };
};

export { debounce };