详解vue2.0的Element UI的表格table列时间戳格式化

<el-table 
        :data="tableData" 
        v-loading.body="loading" 
        border 
        @selection-change="selectionChange" 
        style="width: 100%"> 
      <el-table-column 
          prop="createTime" 
          label="创建时间" 
          :formatter="dateFormat" 
          width="150"> 
      </el-table-column> 
      <el-table-column 
          prop="updateTime" 
          label="更新时间" 
          width="150"> 
      </el-table-column>       
    </el-table> 

new Vue({ 
    el: '#tableView', 
    data: { 
      //列表数据 
      tableData: [{ 
      "createTime":1491559642000, 
      "updateTime":1491559642000 
      }], 
    }, 
    methods:{ 
      //时间格式化 
      dateFormat:function(row, column) { 
        var date = row[column.property]; 
     if (date == undefined) { 
       return ""; 
     } 
     return moment(date).format("YYYY-MM-DD HH:mm:ss"); 
      } 
    } 
  });