alt Hacker NewsThe biggest issue is that there is no native component support for that. So everyone implements their own and it is both brittle and introduces some issues like:
- "ctrl + f" search stops working as expected - the scrollbar has wrong dimensions - sometimes the content might jump (common web issue overall)
The reason why we lost it is because web supports wildly different types of layouts, so it is really hard to optimize the same way it is possible in native apps (they are much less flexible overall).
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Right. This is one of my favorite examples of how badly bloated the web is, and how full of stupid decisions. Virtual scrolling means you're maintaining a window into content, not actually showing full content. Web browsers are perfectly fine showing tens of thousands of lines of text, or rows in a table, so if you need virtual scrolling for less, something already went badly wrong, and the product is likely to be a toy, not a tool (working definition: can it handle realistic amount of data people would use for productive work - i.e. 10k rows, not 10 rows).
Desktop GUI toolkits aren't less flexible on layout, they're often more flexible.
We lost it because the web was never designed for applications and the support it gives you for building GUIs is extremely basic beyond styling, verging on more primitive than Windows 3.1 - there are virtually no widgets, and the widgets that do exist have almost no features. So everyone rolls their own and it's really hard to do that well. In fact that's one of the big reasons everyone wrote apps for Windows back in the day despite the lockin, the value of the built-in widget toolkit was just that high. It's why web apps so often feel flaky and half baked compared to how desktop apps tend(ed) to feel - the widgets just don't get the investment that a shared GUI platform allows.