Stan łączącego z poprzednim stanem w reaguj reagu

const Initial_State = { images: [] };

export default (state = Initial_State, action) => {

    switch (action.type) {

        case 'ImagesFetch':

            return {
                ...state,
                images: [...state.images, action.payload]
            };

        default:
            return state;
    }
}

Average Alpaca