推送到Vuex存储阵列在VueJS中不起作用 [英] Push to vuex store array not working in VueJS

问题描述

我正在使用Vuex来显示"store.js"中的用户列表.该js文件具有这样的数组.

I'm using Vuex to show a list of users from 'store.js'. That js file has array like this.

var store = new Vuex.Store({
  state: {
    customers: [
      { id: '1', name: 'user 1',},
    ]
  }
})

我想在同一数组中插入一组新值

I want to insert a new set of values to the same array

{id:'1'，名称:'user 1'，}

{ id: '1', name: 'user 1',}

以上值是从URL(vue资源)获得的.下面是将获得的数据推送到数组的代码.但是，数据未插入

The above values are obtained from a URL (vue-resource). Below is the code to push the obtained data to the array. However, the data is not inserting

mounted: function() {
      this.$http.get('http://localhost/facebook-login/api/get_customers.php')
      .then(response => {
        return response.data;
      })
      .then(data => {
        store.state.customers.push(data) // not working!!
        console.log(data) // prints { id: '2', name: 'User 2',}
        store.state.customers.push({ id: '2', name: 'User 2',})
      });
    }

推荐答案

您正试图通过vue组件修改vuex状态，但是您不能这样做.您只能通过变异

You are trying to modify the vuex state from the vue component, You can not do it. You can only modify vuex store from a mutation

您可以定义如下所示的突变:

You can define a mutation like following:

var store = new Vuex.Store({
  state: {
    customers: [
      { id: '1', name: 'user 1',},
    ]
  },
  mutations: {
     addCustomer (state, customer) {
      // mutate state
      state.customers.push(customer)
    }
  }
})

现在您可以从vue实例中进行此突变，如下所示:

Now you can commit this mutation from the vue instance, like following:

mounted: function() {
      this.$http.get('http://localhost/facebook-login/api/get_customers.php')
      .then(response => {
        return response.data;
      })
      .then(data => {
        store.commit('addCustomer', { id: '2', name: 'User 2'})
      });
    }

这篇关于推送到Vuex存储阵列在VueJS中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！