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I checked that there is a file in public/html/single-file-example.html that is the same in the previous installation post. I think it is better to have on react.dev docs the owning...

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### Summary useOptimistic’s second parameter is allegedly optional ([source](https://github.com/facebook/react/issues/30638#issuecomment-2276652326)), but the docs imply that it is required. ### Page https://react.dev/reference/react/useOptimistic#parameters ### Details Perhaps in the Reference section, Parameters, under updateFn,...

type: typos

## Test plan - list all changed demos and verify they still work

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react core team

Fixes #6966 Added draw condition to tic-tac-toe game and required changes in the document

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### Summary Leveraging React 18 for Optimized Data Fetching ### Page https://borstch.com/blog/development/strategies-for-efficient-data-fetching-with-react-18 ### Details The article discusses strategies for efficient data fetching with React 18, highlighting the new features introduced...

type: documentation

Navigating to [Virtual DOM and Internals](https://legacy.reactjs.org/docs/faq-internals.html) 3 of 4 of the link at [Prerequisites](https://github.com/acdlite/react-fiber-architecture?tab=readme-ov-file#prerequisites) are not working [React Components, Elements, and Instances](https://facebook.github.io/react/blog/2015/12/18/react-components-elements-and-instances.html) - ❗ [Reconciliation](https://facebook.github.io/react/docs/reconciliation.html) - ❗ [React Basic Theoretical...

Fixes #7098 This pull request updates the documentation for the useOptimistic hook to clarify the optional nature of the updateFn parameter. Also added comments in example code for better understanding.

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[Preview](https://react-dev-git-react-markup-fbopensource.vercel.app/reference/react-markup/renderToHTML)

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React Core Team

The following Chromium feature is currently being tested. "Feature: Remove alert(), confirm(), and prompt for cross origin iframes§ https://www.chromestatus.com/feature/5148698084376576 Therefore, alert() will no longer work on Codepen. console.log() still works....

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bug: unconfirmed

Add React Advanced London, React Summit US and React Day Berlin

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