ts

import { useEventListener } from "@vueuse/core";

export function titleChange() {
  // 动态标题
  let OriginTitile: string = document.title;
  let titleTime: NodeJS.Timeout;
  useEventListener(document, "visibilitychange", () => {
    if (document.hidden) {
      //离开当前页面时标签显示内容
      document.title = "w(ﾟДﾟ)w 不要走！再看看嘛！";
      clearTimeout(titleTime);
    } else {
      //返回当前页面时标签显示内容
      document.title = "♪(^∇^*)欢迎回来！";
      //两秒后变回正常标题
      titleTime = setTimeout(() => {
        document.title = OriginTitile;
      }, 2000);
    }
  });
}

ts

import { titleChange } from "./utils/title";

titleChange();  //动态标题

sh

pnpm install --save-dev @types/node