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With React 19 typings: Cannot find namespace 'JSX'. #4011
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Philipp91
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To match the react v17 that's already being used. This makes the new React.JSX type available, which is needed for v19 compatibility, see jaredpalmer#4011.
Philipp91
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Fixes jaredpalmer#4011. This is for compatibility with React v19, where the global JSX namespace went away.
Philipp91
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Fixes jaredpalmer#4011. This is for compatibility with React v19, where the global JSX namespace went away.
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Lovely, thanks man, Anyway I have another solution to overrides it with react
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Bug report
Current Behavior
I use the latest formik release with React v19, specifically
"@types/react": "^19.0.1"
and I get 4 errors like:Expected behavior
No type errors.
Suggested solution(s)
s/JSX/React.JSX
Additional context
https://react.dev/blog/2024/04/25/react-19-upgrade-guide#the-jsx-namespace-in-typescript
It's only about typings anyway. In
@react/types
, this was backported also to the v16 series, so the proposed change doesn't require React v19 to work.Your environment
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