React - What's the Official Functional Terms for Something That's Mapable?

The minute you put a U state or use the fact into a funk, into a component in React, you made it exponentially more difficult to test. So what I have started advocating for is, you know, modeling your data in a way that matches that. The reason we throw a lot of React developers, if you can throw state into an array, all of a sudden it becomes very easy to reason without. And working with that data in a functional way is very intuitive and very easy for anybody who's learned ES6 flavor JavaScript.