v-for 循环 实现每n项一分组换行

<table>
    <tr v-for="(row,index) in sliceList(list,4)" :key="index">
      <td v-for="(item,i) in row" :key="i">																																				
       	{{item.attrA}}
      </td>
    </tr>
</table>

data() {
     return {
     	list:[]
     }
},
computed: {
  sliceList() {
    return function (data,count) {
      if (data != undefined) {
        let index = 0;
        let arrTemp = [];
        for (let i = 0; i < data.length; i++) {
          index = parseInt(i / count);
          if (arrTemp.length <= index) {
            arrTemp.push([]);
          }
          arrTemp[index].push(data[i])
        }
        return arrTemp
      }
    }
  }
}