element-ui error

by zpczjl

HTML

<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui/lib/index.js"></script>
<div id="app">
  <template>
    {{multipleSelection}}
    <el-table :data="getData()" border style="width: 100%" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column label="Date" width="120">
        <template scope="scope">{{ scope.row.date }}</template>
      </el-table-column>
      <el-table-column property="name" label="Name" width="120">
      </el-table-column>
      <el-table-column property="address" label="Address" show-overflow-tooltip>
      </el-table-column>
    </el-table>
  </template>
</div>

CSS

@import url("//unpkg.com/element-ui/lib/theme-default/index.css");

JavaScript

var Main = {
  data() {
      return {
        data: [],
        multipleSelection: []
      }
    },

    methods: {
      getData() {
          console.log('getData')
          return [{
            date: '2016-05-03',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-02',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-04',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-01',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-08',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-06',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }, {
            date: '2016-05-07',
            name: 'Tom',
            address: 'No. 189, Grove St, Los Angeles'
          }]
        },
        handleSelectionChange(val) {
          this.multipleSelection = val;
        }
    }
}
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')