[danabramov]

It’s definitely not useless. You’re right that it requires the interpreting layer to be able to handle missing info. The use case at the end of the article is streaming UI. UI, unlike arbitrary data, is actually self-describing — and we have meaningful semantics for incomplete UI (show the closest loading state placeholder). That’s what makes it work, as the article explains in the last section.

[Existenceblinks]

Thanks Dan. Yes, I agreed on the ui part, it seems to work in most cases. Some html tags have relation like `<datalist>` or `[popover]` attribute, but if we make all kind of relations trivial then it's benefit for sure.

[danabramov]

Yea, and also to clarify by "UI", I don't necessarily mean HTML — it could be your own React components and their props. In idiomatic React, you generally don't have these kinds of "global" relations between things anyway. (They could appear inside components but then presumably they'd be bound by matching IDs.)