redux - 添加属性reducer redux

Question

我不想添加属性 sections: []到我的对象 formOpen在 reducer 中，我收到我的对象 formOpen从我的服务器和其他属性，我想添加这个，我该怎么做？
谢谢

import { combineReducers } from 'redux'
import * as types from '../constants/ActionTypes'

const initialState = {
    isFetching: false,
    formOpen: {

    }
};

export function formEditor (state = initialState, action) {
    switch (action.type) {
        case  types.RECEIVE_OPEN_FORM:
            return {
                ...state,
                isFetching: false,
                formOpen: action.formOpen
            };        

        default:
            return state;
    }
}

export default combineReducers({
    formEditor
})

Answer 1

这应该可以解决问题:

export function formEditor (state = initialState, action) {
    switch (action.type) {
        case  types.RECEIVE_OPEN_FORM:
            return {
                ...state,
                isFetching: false,
                formOpen: action.formOpen
            };        

        case types.SET_FORM_OPEN_SECTIONS:
            return {
                ...state,
                isFetching: false,
                formOpen: {
                  ...state.formOpen,
                  sections: action.formOpenSections
                }
            };

        default:
            return state;
    }
}