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Ensure useState and useReducer initializer functions are double invoked in StrictMode #28248

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Merged
merged 5 commits into from
Feb 6, 2024
Merged

Ensure useState and useReducer initializer functions are double invoked in StrictMode #28248

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6596c5c
Ensure useState and useReducer initializer functions are double invok…
Feb 5, 2024
c40cd29
Fix Flow
Feb 5, 2024
69abbc5
buff up wording
Feb 5, 2024
f6d0c63
Ensure second invocation is dimmed
Feb 5, 2024
3b83783
No try-finally for consistency
Feb 6, 2024
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Fix Flow
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Sebastian Silbermann committed Feb 5, 2024
commit c40cd298395d40cfedc8d6947f9febd6b941a82b
1 change: 1 addition & 0 deletions packages/react-reconciler/src/ReactFiberHooks.js
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Expand Up @@ -1756,6 +1756,7 @@ function mountStateImpl<S>(initialState: (() => S) | S): Hook {
// $FlowFixMe[incompatible-use]: Flow doesn't like mixed types
initialState = initialStateInitializer();
if (shouldDoubleInvokeUserFnsInHooksDEV) {
// $FlowFixMe[incompatible-use]: Flow doesn't like mixed types
initialStateInitializer();
}
}
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