js 设置网页图标和标题 

const changeFavicon = link => {
  let $favicon = document.querySelector('link[rel="icon"]');
  // If a <link rel="icon"> element already exists,
  // change its href to the given link.
  if ($favicon !== null) {
    $favicon.href = link;
    // Otherwise, create a new element and append it to <head>.
  } else {
    $favicon = document.createElement("link");
    $favicon.rel = "icon";
    $favicon.href = link;
    document.head.appendChild($favicon);
  }
};
let icon = ''; // 图片地址
changeFavicon(icon); // 动态修改网站图标
let title = ''; // 网站标题
document.title = title; // 动态修改网站标题

 

posted @ 2020-02-08 20:42  一城柳絮吹成雪  阅读(3416)  评论(0)  编辑  收藏  举报