element 穿梭框模糊查询 :filter-method=“filterMethod“

<el-transfer
      v-model="transferValue"
      :filterable="filterable"
      :filter-method="filterMethod"
       filter-placeholder="请输入"
      :render-content="renderFunc"
      :titles="['未添加', '已添加']"
      :button-texts="['到左边', '到右边']"
      :data="transferAllDatas"
      :props="{
        key: 'id',
        label: 'name',
      }"
    >
    </el-transfer>

在data里需要这么写，关键的一步

 data() {
    return {
      filterMethod(query, item) {
        return item.description.indexOf(query) > -1;
      }
    };
  },