React Skills

utils.ts

import { useEffect } from "react";

export const useOutsideClick = (
  ref: React.RefObject<HTMLElement>,
  callback: () => void
) => {
  useEffect(() => {
    const handleClick = (e: MouseEvent) => {
      if (ref.current && !ref.current.contains(e.target as Node)) {
        callback();
      }
    };
    document.addEventListener("click", handleClick);
    return () => {
      document.removeEventListener("click", handleClick);
    };
  }, [ref, callback]);
};

/**
 * 格式化数字显示
 */
export const formatNumber = (num: number, gap: number = 3) => {
  const reg = new RegExp(`\\B(?=(\\d{${gap}})+(?!\\d))`, "g");
  return num.toString().replace(reg, " ");
};