Hacker News with Generative AI: Reactivity

When Declarative Systems Break (interjectedfuture.com)
A couple of months ago, I had to reload everything I knew about reactivity back into my head. I discovered that I missed a large corner of the development around unstructured reactivity, by way of Signals. From arguments about signals vs. functional components on Twitter and in post comments, it sounds like the issue concerns developer affordances of different APIs. From the marketing of signal-based frameworks, it sounds like the issue is a matter of performance.
Show HN: Ayr.js – a reactivity model designed for simplicity (npmjs.com)
Learn JavaScript Reactivity: How to Build Signals from Scratch (freecodecamp.org)