this post was submitted on 05 Sep 2024
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Programming
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Why the assumption that reactivity is only a front-end thing?
I’ve used it plenty on the back-end when dealing with streams of data that need to trigger other processing steps.
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
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.