code: function finalizeHtml($html, needHtmlText) {
    let returnValue;
  
    if (needHtmlText) {
      returnValue = $html[0].innerHTML;
    } else {
      const frag = document.createDocumentFragment();
      const childNodes = util.toArray($html[0].childNodes);
      const {length} = childNodes;
  
      for (let i = 0; i < length; i += 1) {
        frag.appendChild(childNodes[i]);
      }
      returnValue = frag;
    }
  
    return returnValue;
  }
docs: Finalize html result
  @private
  @param {jQuery} $html jQuery instance
  @param {boolean} needHtmlText pass true if need html text
  @returns {string|DocumentFragment} result