title: How to append dynamic dictionary instead of mutate in Vue.js
body: <p>i have a dictionary with <code>{75:{}, 76:{}}</code> and I want to add values based on their id so having <code>{parent_id: 75, val: 108}, {parent_id: 75, val: 178}</code> I would get <code>{75: {108, 178}}</code>. Instead what i am getting is the value getting overwritten by the latest val.</p>
  <p>This is code I am trying</p>
  <pre><code>for(var item in response.data.data){
         value = response.data.data[item];
         Vue.set(reviewdata, value.parent_id, {value.val});
      }
  </code></pre>
  <p>My data looks like <code>response.data.data = [{parent_id: 75, value: 108}, {parent_id: 7, value: 178}, {parent_id: 76, value: 92}, {parent_id: 76, value: 117}]</code></p>