vuex映射值时出错Computed property "city" was assigned to but it has no setter

Question

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import HomeHeader from './components/header' import HomeSwiper from './components/swiper' import HomeIcons from './components/icons' import HomeRecomment from './components/recomment' import HomeGo from './components/go' import Axios from 'axios' import { mapState } from 'vuex' export default {  name:"Home",  components:{HomeHeader,HomeSwiper,HomeIcons,HomeRecomment,HomeGo},  data (){   return {    swiperList:[],    iconList:[],    recommendList:[],    weekendList:[]   }  },  computed: {   ...mapState(['city'])  },  methods:{   ajaxIndex () {    Axios.get('/api/index.json?city=' + this.city).then(this.respones)   },   respones (res) {    console.log(res);    const list=res.data.data;    this.city=list.city    this.swiperList=list.swiperList    this.iconList=list.iconList    this.recommendList=list.recommendList    this.weekendList=list.weekendList   }  },  mounted () {   this.lostcity = this.city   this.ajaxIndex()  },  activated () {   if (this.lostcity !== this.city) {    this.lostcity = this.city    this.ajaxIndex()   }  } }

报错：Computed property "city" was assigned to but it has no setter.

程序正常运行

Answer 1

qq_Mason舟_0 2018-05-30 17:04:44

computed: {

  ...mapState(['city'])

 },

改为：定义一个CurrentCity:‘city', 原因未知，有点奇怪

computed: {

  ...mapState({CurrentCity:‘city'})

 },

• Dell #1

  代码写的有问题，this.city到底是什么，如果是计算属性是不能给赋值的

• 提问者 YananNi #2

  非常感谢！

• 訫語 回复 Dell #3

  这是你写的。我们跟着报了个错

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Answer 2

kopa 2020-08-03 15:56:45

this.city=list.city
删除掉， 因为json里面的city已经删除了

Answer 3

行走在孤岭中 2019-09-02 15:01:27

你在这个 respones (res）请求返回中this.city=list.city删除吧，就没事了