The whole idea of SPAs is just unfortunate most of the time. If you look at the list of the most popular websites:

https://en.wikipedia.org/wiki/List_of_most-visited_websites

Basically all of them can be decomposed to:

- List of comments/recommendations/pictures (sometimes in a tree), virtualized and lazy loaded

- A video

- A comment box

The irony is that this is super easy to represent in HTML semantically (HTML was literally made for this).

The 'virtualized and lazy loaded' part should've been a HTML standard (or more generally, partial page updates, like when you submit a comment) and then we'd have basically very little reason to do Javascript at all.

The irony of React is that what it does is make a mess of HTML, and allows you to ship your own semantic model in JSON/JS which will then get unpacked on the client into some display HTML.

This is accentuated by the fact that React's support for virtualization is really quite poor, as it assumes that you have the 'state' in RAM, and you have to go out of way to use third party libs that can handle both partial state and partial display.

Edit:

Apparently I'm not the only one who thinks this, and Chrome/W3C seems to experimenting with something similar:

https://developer.chrome.com/blog/declarative-partial-update...

But this should've been a W3C standard in like 1999.