vue.js/Vue getter 未定义错误

Question

我的 App.vue 组件出现错误，getter: logged

<li id="shoppinglists" v-if="!logged">...

ERROR LOG: '[Vue warn]: Property or method "logged" is not defined on the instance but referenced during render. 
Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. 

我不明白为什么它被声明为未定义，因为我没有收到另一个定义的 getter 的错误:currentUserId

<li v-else id="shoppinglists"><router-link :to="{ name: 'ShoppingLists', params: { id: currentUserId } }" >Shopping Lists</router-link></li>

两者都被定义为计算 Prop :

<script>
import store from '@/vuex/store'
import { mapGetters } from 'vuex'

export default {
  name: 'app',
  computed: {
    ...mapGetters([
      { currentUserId: 'getCurrentUserId' },
      { logged: 'getCurrentUserStatus' }
    ])
  },
  store
}
</script>

我的 vex/getters.js 是:

vuex/getters.js

export default {
  getCurrentUserStatus: state => state.logged,
  getCurrentUserId: state => state.currentUserId,
  ...
}

我的商店是

vuex/store.js

import Vue from 'vue'
import Vuex from 'vuex'
import getters from './getters'
...

Vue.use(Vuex)

const state = {
  logged: false,
  currentUserId: '',
  ...
}

export default new Vuex.Store({
  state,
  getters,
   ...
})

Answer 1

如果你想使用不同名称的 getter，只需将一个对象传递给 ...mapGetters

所以语法是:

...mapGetters({
      currentUserId: 'getCurrentUserId',
      logged: 'getCurrentUserStatus' 
 })