Redux reduce-reducers example

reduce-reducers-example.js

const mainReducer = combineReducers({a, b, c});

const secondReducer = function(state, action) {
    switch(action.type) {
        case SOME_ACTION:
            return someSpecificReducer(state.a, state.c);
        default: return state;    
    }
};


const rootReducer = reduceReducers(mainReducer, secondReducer);