Update part-3-data-flow.md

[monchipi]

I would like to fix the sample code in the file "store.js" to fix a problem that is not working properly.

--- name: :memo: Documentation Fix about: fix existing documentation page problem ---.

Checklist.

• [No] Is there an existing problem with this PR?

Is there a document page that needs to be fixed?

• Section : part3

What is the problem?

It does't work.

What changes will this PR make to correct the problem?

Change the function to variable.

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[phryneas]

That is currently right, your change would break the tutorial.

In Part 2, a default import is used to import the store:

// this is a default import like in part 2
import store from './app/store'
// this would be a named import, but we don't show that anywhere for `store`
import { store } from './app/store'

That also means that here in part 3, a default export has to be used, or it wouldn't be working.

Did you see another kind of import for store somewhere else in the tutorials?

[monchipi]

Thank you for your review and comment. Regarding your question about the import for 'store' in the tutorials, I didn't see any other type of import. If we don't modify it, the code on line 6 in 'index.js' won't work correctly, which is why nothing appears on my screen.

Have you completed the Part 3 tutorial?

[EskiMojo14]

are you sure that you didn't accidentally write a named import in your local project?

[monchipi]

@EskiMojo14 Thank you for your review and comment. I didn't write accidentally. I have cloned this project and modify two files named "features/posts/postsSlice.js" and "app/store.js" according to the article.

[timdorr]

If you're following through, this is all covered in Part 2, specifically with the Provide The Store section: https://redux.js.org/tutorials/essentials/part-2-app-structure#providing-the-store

You can see those exports from app/store.js are all default, not named. You have copied something incorrectly if you need to switch to a named export at that point.

Regardless, this doc is correct as-is. Thanks, but this PR will break the tutorial.