reactjs / reactjs/react.dev

[Suggestion]: Improve Context usage Troubleshooting section

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type: documentation
Dominant language
JavaScript
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Description

Summary

Yesterday I found out that independently wrapped components in Context doesn't share the same Context values. Instead each one has their own context values.

Page

https://react.dev/reference/react/useContext

Details

Now when I think about it that makes sense, but it took quite some time to realize where's the issue in a complext real world app where we render React components in different places of legacy code.

Would be great if we extend the Troubleshooting section of the Context docs to include this case.

Example: https://codesandbox.io/p/sandbox/reactcontext-issue-example-f48m4m

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Open the React useContext reference page and review its Troubleshooting section alongside the linked CodeSandbox example. Add guidance explaining that independently wrapped components do not share the same Context values, and consider the case complete when the troubleshooting text clearly describes this behavior for components rendered in separate parts of a legacy application.

Written by the indexing model from the issue text.

Assessment

Tech stack
react
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
52/100

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