vue sort list https://jsfiddle.net/kpLnk0L7/2/

index.html

<div id="app">
  
<div>
    <button @click="sort_by='name'">name</button>
    <button @click="sort_by='price'">price</button>
    <button @click="sort_by='count'">count</button>
</div>
    <hr>
<div>
    <button @click="by_desc=true">ASC</button>
    <button @click="by_desc=false">DESC</button>
</div>
<hr>
  <ul>
    <li v-for="i in sortBy(items, sort_by, by_desc)">
      <span v-text="i.name" :class="{b: sort_by== 'name'}"></span>  /
      <span v-text="i.price" :class="{b: sort_by== 'price'}"></span> /
      <span v-text="i.count" :class="{b: sort_by== 'count'}"></span>
      </li>
  </ul>
</div>

style.css

.b {
  font-weight: bold;
}

vue_sort_list.js

var app = new Vue({
	el: "#app",
  data: {
   sort_by: 'name',
   by_desc: false,
  	items: [
    	{
      	name: "apple",
        price: 1,
        count: 10
      },
      {
      	name: "orange",
        price: 2,
        count: 6
      },
      {
      	name: "banana",
        price: 3,
        count: 1
      }
    ],
  },
  methods: {
  	sortBy: function(items, key, desc) {
    	return items.sort(function(a, b) {
        var x = a[key]; 
        var y = b[key];
        
        if(desc){
        	return ((x < y) ? -1 : ((x > y) ? 0 : 1));
        } else{
       	 return ((x > y) ? -1 : ((x < y) ? 0 : 1));
        }
        
    });
    }
  }
});