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foundation-redux.rootstatefromslices

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RootStateFromSlices type​

Extracts the root state type from an array of slices.

Signature:

export type RootStateFromSlices<S extends SliceArray> = {
    [K in S[number]['name']]: Extract<S[number], {
        name: K;
    }> extends Slice<infer State> ? State : never;
};

References: SliceArray, Slice

Remarks​

This utility type maps over the slice names and extracts the state type for each slice. The resulting type represents the complete state structure of your Redux store.

Example​

const slices = [userSlice, cartSlice];
type RootState = RootStateFromSlices<typeof slices>;
// Result: { user: UserState, cart: CartState }