Valine评论懒加载

valine.ejs

<div id="1"></div>
<script type="text/javascript">
loadComments();
function loadComments() {
  if (typeof Valine === 'undefined') {
    var getScript = (options) => {
      var script = document.createElement('script');
      script.defer = true;
      script.crossOrigin = 'anonymous';
      Object.keys(options).forEach((key) => {
          script[key] = options[key];
      });
      document.body.appendChild(script);
    };
    getScript({
      src: 'https://cdn.jsdelivr.net/npm/valine/dist/Valine.min.js',
      onload: () => {
        newValine();
      }
    });
  } else {
    newValine();
  }
}
function newValine() {
  new Valine({
      el: '#1',
      appId: '<%= commentSetting.disqusSetting.api %>',
      appKey: '<%= commentSetting.disqusSetting.apikey %>',
      placeholder:'Hello!留下你的足迹吧 ！（可直接在评论框内粘贴图片）',
  });
}
</script>