SSC sort by number of children (un-minified)

SSC-SBC Full

function countChildren(liCommentEle) {
  return liCommentEle.querySelectorAll('li.comment').length;
}

function sortList(listEle) {
  var children = [];
  for(var i=0; i<listEle.children.length; ++i) {
    children.push({'ele': listEle.children[i], 'childCount': countChildren(listEle.children[i])});
  }
  var sorted = children.sort(function(a, b){return a.childCount - b.childCount;});
  for(var i=sorted.length-1; i>0; --i) {
    listEle.insertBefore(sorted[i].ele, sorted[0].ele);
  }
}

sortList(document.querySelector('ol.commentlist'));
var childrenLists = document.querySelectorAll('ul.children');
for(var i=0; i<childrenLists.length; ++i) {
  sortList(childrenLists[i]);
}