vue+elementUI input框之过滤显示

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 效果图如下：

<el-form-item label="Test Filter: ">
  <el-autocomplete
      class="inline-input"
      v-model="form.filter"
      :fetch-suggestions="querySearch"
      placeholder="请输入内容"
      @select="handleSelect"
  ></el-autocomplete>
</el-form-item>

methods:{
  querySearch(queryString,cb){
    let arr = [
      {name:'a',value:'he is a gril'},
      {name:'b',value:'good name'},
      {name:'c',value:'how boy'},
    ];
    let results = queryString ? arr.filter((currentValue,index,arr) => {
      console.log(currentValue);//item的每一项
      console.log(arr);//arr数组
      return (currentValue.value.toLowerCase().indexOf(queryString.toLowerCase()) === 0);//满足条件的返回
    },this):arr;
    cb(results)
  },
}