js中filter处理后端返回表格数据

<template>
  <div>
    <el-table
      :data="tableData"
      style="width: 100%">
      <el-table-column
      :formatter="tranForm"
        prop="gender"
        label="性别"
        width="180">
      </el-table-column>
      <el-table-column
        prop="date"
        label="日期"
        width="180">
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名"
        width="180">
      </el-table-column>
      <el-table-column
        prop="address"
        label="地址">
      </el-table-column>
    </el-table>
  </div>
</template>

<script>
export default {
      data() {
        return {
          optionData:[
              {value:'1',label:'男'},
              {value:'0',label:'女'}
          ],
          tableData: [{
            gender:'0',
            date: '2016-05-02',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1518 弄'
          }, {
             gender:'0',
            date: '2016-05-04',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1517 弄'
          }, {
             gender:'1',
            date: '2016-05-01',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1519 弄'
          }, {
             gender:'1',
            date: '2016-05-03',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1516 弄'
          }]
        }
      },
      methods: {
        //主要代码
        tranForm(row,column,cellValue){
          let gender=''
          this.optionData.filter(item=>{
            if(item.value==cellValue){
              gender=item.label
            }
          })
          return gender || cellValue
        }
      }
}
</script>

<style scoped>

</style>