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rsnext/docs/api-reference/next.config.js/react-strict-mode.md
Lee Robinson d5dc968134
Improve React Strict Mode documentation. (#28139) 
The current text linked wasn't obvious. Plus, the best description of what Strict Mode is was at the bottom of the document.
2021-08-15 17:44:00 +00:00

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description
The complete Next.js runtime is now Strict Mode-compliant, learn how to opt-in

React Strict Mode

Suggested: We strongly suggest you enable Strict Mode in your Next.js application to better prepare your application for the future of React.

React's Strict Mode is a development mode only feature for highlighting potential problems in an application. It helps to identify unsafe lifecycles, legacy API usage, and a number of other features.

The Next.js runtime is Strict Mode-compliant. To opt-in to Strict Mode, configure the following option in your next.config.js:

// next.config.js
module.exports = {
  reactStrictMode: true,
}

If you or your team are not ready to use Strict Mode in your entire application, that's OK! You can incrementally migrate on a page-by-page basis using <React.StrictMode>.

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