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Reactivity and Reactive Programming [Blog Post] (cosmicbyt.es)

submitted 2 months ago by [email protected] to c/[email protected]

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Most modern JavaScript UI frameworks boast Reactivity, but have you ever wondered what that means exactly?

In my opinion, Reactivity is largely responsible for making modern frontend development unintuitive to outsiders.

This blog post explains what Reactivity is, and how it manifested in the frontend development world today.

You might find this interesting if you're: a frontend dev unfamiliar with the concept, a non-frontend dev interested in frontend, or just curious what Reactivity is!

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[–] [email protected] 6 points 2 months ago* (last edited 2 months ago) (1 children)

You're right, and I actually make that point in the blog post! Reactivity is not exclusive to the frontend.

However, in the frontend, Reactivity is almost an invisible default. You don't opt into it, you just kinda have to when you use a modern framework.

In the backend, many people use Reactive patterns without even knowing them or thinking of them. But either way, if you do use them, you likely opted in, and it wasn't a "all code you write is automatically reactive" like in modern browser ui frameworks

[–] [email protected] 1 points 2 months ago

I mean it tends to show up in the FE due to JS being fundamentally callback based. You’re basically responding to events and the like. Unfortunately the language was not designed for reactivity so they’re all added on via frameworks.