Don't really see a benefit in this.

However I think most people mix React/Vue with jQuery. Including myself. But I am trying to get rid of it.

I the last couple months, I was actually using jQuery nearly only for selecting elements. Which is kind of ridiculous. Pulling in suchs a big lib only for selecting stuff.

But after I found this repo I try to use more vanilla js.

In the last few months I was using Vue pretty often, so I am making the whole dom manipulation in vue now. Way cleaner.

I would say the most common scenario where you see two different view frameworks, is when a legacy system gets modernized / updated.

For example, React is famous for being so easy to drop into an existing project and incrementally migrate views to it over time.

I can't see a convincing reason to actually design an app with two or more view frameworks from the start. It's definitely a transition situation.

In my opinion, people mix React + jQuery a lot. Some of them use jQuery to do Ajax calls (habits?). Some use jQuery to deal with CSS property changes (CSS is unresolved!). Some use jQuery for modal dialogs (Catching outside clicks.).

But React + Vue I think I saw only a demo app. Ryan Florence only showed how to replace Angular by converting an existent codebase, step by step, component after component, to demo how easy it is to integrate React into virtually any code base. But is it used out in the wild? Maybe but never saw something or never read something about such mixtures.​