This implementation will be incredibly slow for large lists. Every time any one of the elements moves, you will make N dom changes rather than the needed one or

This implementation will be incredibly slow for large lists. Every time any one of the elements moves, you will make N dom changes rather than the needed one or two. In an individual case, you can hand-write the faster version. But when you have multiple components like this interacting, knowing how to do a minimal change is not an easy task. Unless you have experts writing these things by hand, using a framework is the quickest way to minimize performance problems and memory leaks.