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Sharon Hartsell
4,403 PointsApp Architecture Design - Standalone Components vs Lifting State Up
I understand that lifting the score state up from <Counter /> to the overall app was necessary so that other components can access it. However, I thought building reusable components was a key benefit of React. Since the Counter component no longer manages its own score, we couldn't easily plug it into another app, unless we continued to pass it the score.
From an architecture standpoint, when should a component be self-contained vs when should state be lifted up? It seems like most of my apps wind up with nearly all the state in <App />.
1 Answer
Mark Westerweel
Full Stack JavaScript Techdegree Graduate 22,378 PointsGood question! We will get there in a later course, I presume. You can do that with React Hooks and Redux.
Well, if any module needs access to the top-level component, then yes, the state would end up in <App />.
In the case of a score counter or anything where we instance out from the top-level, all that state would resides there. In simple applications, it doesn't matter much.
Only when we NEED state on a local level and build a very simple app, would it reside locally, to make sure it can't interfere with upper data-flow and only passed DOWN
Emre K.
Full Stack JavaScript Techdegree Graduate 16,406 PointsEmre K.
Full Stack JavaScript Techdegree Graduate 16,406 Points+1
I am curious to know as well.