Vue

HTML

<div id="app">
  <h2>Items:</h2>
  Введите <b>itemArrays</b>: <input v-model="arrayName" />
  <ol>
    <li v-for="item in items">
      <label>{{ item }}</label>
    </li>
  </ol>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

del {
  color: rgba(0, 0, 0, 0.3);
}

Vue

new Vue({
  el: "#app",
  data: {
  	arrayName: 'itemArrays',
    itemArrays: [
      1, 2, 3, 4
    ]
  },
  computed: {
  	items: function(){
    	return (this.$data[this.arrayName] || []);
    }
  }
})