小编Ala*_*Roy的帖子

var myTemplate = Vue.defineComponent({
    template: '#myTemplate',
    
    data() {
        return {
          firstVariable: {}
        }
    },
    
    mounted() {
        loadData();
    },
    
    methods:{
      loadData() {
          axios.get(MY_ROUTES).then(res => {
              // let's suppose res.data is going to be {subVariable: {subVariableKey: "val"}} 
              this.firstVariable = res.data;        
              
          })
      }
    }
    
});

// template.html

<script type="text/template" id="myTemplate">
    <div class="container">
      <textarea v-model="firstVariable.subVariable?.subVariableKey"></textarea>
    </div>
</script>