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Add note about useDebugValue in production #192

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Jan 8, 2023
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Add note about useDebugValue in production #192

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2 changes: 2 additions & 0 deletions src/exercise/06.md
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Expand Up @@ -33,6 +33,8 @@ Production deploys:
- [Exercise](https://advanced-react-hooks.netlify.com/isolated/exercise/06.js)
- [Final](https://advanced-react-hooks.netlify.com/isolated/final/06.js)

> Note: useDebugValue values will not show in production, because the production build of useDebugValue does nothing.

In this exercise, we have a custom `useMedia` hook which uses
`window.matchMedia` to determine whether the user-agent satisfies a given media
query. In our `Box` component, we're using it three times to determine whether
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