title: Vue.js + Element UI - How to get v-model array el-select
body: <p>I'm using el-select with v-model and options with different data. 
  select use data <code>product.collection</code>
  and for option select use data <code>options</code></p>
  
  <p>How do i can get v-model from render array product.collection?
  like this 
  <a href="https://i.stack.imgur.com/kRLON.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>and this is my code
  <a href="https://jsfiddle.net/dede402/9wp5ej8w/" rel="nofollow noreferrer">https://jsfiddle.net/dede402/9wp5ej8w/</a></p>