Preview:
import {createStore, Action} from "redux";


export interface IRootState{
    squares : Array<string|null>
    oIsNext: boolean
}

const initialState = {
    squares: [],
    oIsNext: true
}

const rootReducer = (state:IRootState = initialState) => {
    return {
        squares: [null,null,null,null,'O','X',null,null,null],
        oIsNext: true
    }
}

const store = createStore<IRootState,Action<any>,{},{}>(rootReducer);
export default store;

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