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change reducer type validation place #4452

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merged 2 commits into from
Dec 15, 2022
Merged

change reducer type validation place #4452

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75f37f9
change reducer is not a function err
Ahmed-Hakeem Dec 14, 2022
c0bb7f7
Fix formatting
timdorr Dec 15, 2022
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16 changes: 8 additions & 8 deletions src/createStore.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,14 @@ export default function createStore<
preloadedState?: PreloadedState<S> | StoreEnhancer<Ext, StateExt>,
enhancer?: StoreEnhancer<Ext, StateExt>
): Store<ExtendState<S, StateExt>, A, StateExt, Ext> & Ext {
if (typeof reducer !== 'function') {
throw new Error(
`Expected the root reducer to be a function. Instead, received: '${kindOf(
reducer
)}'`
)
}

if (
(typeof preloadedState === 'function' && typeof enhancer === 'function') ||
(typeof enhancer === 'function' && typeof arguments[3] === 'function')
Expand Down Expand Up @@ -99,14 +107,6 @@ export default function createStore<
) as Store<ExtendState<S, StateExt>, A, StateExt, Ext> & Ext
}

if (typeof reducer !== 'function') {
throw new Error(
`Expected the root reducer to be a function. Instead, received: '${kindOf(
reducer
)}'`
)
}

let currentReducer = reducer
let currentState = preloadedState as S
let currentListeners: (() => void)[] | null = []
Expand Down