使用Vue.js中的过滤器实现幂方求值的方法

<template>
 <el-row>
 <el-tabs v-model="activeName" @tab-click="handlerClick">
  <el-tab-pane label="饼图" name="pie2D">
  <el-date-picker
   v-model="value2"
   type="month"
   placeholder="选择月">
  </el-date-picker>
  <el-col :span="12">
   <div id="epie2D" :style="{width:'1920px',height:'800px'}"></div>
  </el-col>
  </el-tab-pane>
  <el-tab-pane label="柱状图" name="column2D">
  <el-col :span="12">
   <div id="column2D" :style="{width:'1920px',height:'800px'}"></div>
  </el-col>
  </el-tab-pane>
  <el-tab-pane label="过滤器" name="filter">
  <el-col :span="12">
   <div id="filterData" :style="{width:'1900px',height:'800px'}">
   <el-input v-model="oldData"></el-input>
   <label>{{oldData | Power}}</label>
   </div>
  </el-col>
  </el-tab-pane>
 </el-tabs>
 </el-row>
</template>

<script>
 export default {
 name: 'Epie2D',
 data() {
  return {
  oldData:''
  }
 },
 filters: {
  Power: function(value) {
  return value * value;
  }
 }
 }
</script>