vue中静态数据怎么分页（以el-table为例子）

  <el-table :data="taskList.slice((data.pageNum - 1) * data.pageSize, data.pageNum * data.pageSize)" stripe style="width: 100%">
  </el-table>
  <el-pagination @current-change="handleCurrentChange" :current-page.sync="data.pageNum" :page-size="data.pageSize" layout="pager, next, jumper" :total="taskList.length">
  </el-pagination>

export default {
     data() {
        return {
            taskList: [],
             data: {
                pageNum: 1,
                pageSize: 10,
     },
     methods: {
        handleCurrentChange(val) {
            this.pageNum = val;
        },
}