使用简单HTML DOM将相对URL转换为绝对URL？

function convertRelativeToAbsoluteURL(relativeURL) {
  const a = document.createElement('a');
  a.href = relativeURL;
  return a.href;
}

const relativeURL = '/path/to/resource.html';
const absoluteURL = convertRelativeToAbsoluteURL(relativeURL);
console.log(absoluteURL); // 输出绝对URL