The way the article is titled, I was expecting a virtual list or virtual scroll. Now that would be one of the most useful things to talk about. How to virtual s

The way the article is titled, I was expecting a virtual list or virtual scroll. Now that would be one of the most useful things to talk about. How to virtual scroll 10000 items with different heights. 1) When user can provide heights and 2) when everything has to be rendered on the fly