我正在尝试在我的减速器中使用传播属性，但是它又返回了无效的语法错误。我的构建支持使用散布运算符，因为我仅在我的减速器中得到错误。

auth_types.js

export const AUTH_USER = 'AUTH_USER'
export const UNAUTH_USER = 'UNAUTH_USER'

auth_actions.js

import { AUTH_USER, UNAUTH_USER } from './auth_types'



   export function signinUser({ email, password }) {
      return function(dispatch) {
        axios.post(`${ROOT_URL}/signin`, { email, password })
          .then(response => {
            dispatch({ type: AUTH_USER })

            browserHistory.push('/feature')
          })
      }
    }

reducer.js

import { AUTH_USER, UNAUTH_USER } from '../actions/auth_types'

export default function(state = {}, action) {
  switch(action.type) {
    case AUTH_USER:
      return { ...state, authenticated: true }
    case UNAUTH_USER:
      return { ...state, authenticated: false }
  }

  return state
}