[sesm]

Looked at SolidJS, it's primary mechanism is signals, which are essentially runtime edit maps. They have the same downside as all other types of edit maps - programmer needs to compose them manually, which becomes messy very quickly with loops and conditions.

[baxuz]

What are edit maps?

[sesm]

Mapping between reactive variable and DOM element. I first heard this term in Million.js docs, but it explains very well what most 'reactive' frameworks are doing. For example, a Signal creates the mapping at runtime on first render.