https://bocchi2b.top/js/title.js

1//动态标题
2var OriginTitile = document.title;
3var titleTime;
4document.addEventListener('visibilitychange', function () {
5  if (document.hidden) {
6    //离开当前页面时标签显示内容
7    document.title = '😭不要走~';
8    clearTimeout(titleTime);
9  } else {
10    //返回当前页面时标签显示内容
11    document.title = '🥰是来找波奇玩的吗～';
12    //两秒后变回正常标题
13    titleTime = setTimeout(function () {
14      document.title = OriginTitile;
15    }, 2000);
16  }
17});
18