element的el-autocomplete带输入建议搜索+搜索匹配文字高亮显示

直接上代码

// vue代码块 添加插槽
        <el-autocomplete
          clearable
          placeholder="请输入关键词进行搜索"
          @input="searchInput"
          v-model="searchInputData"
          :fetch-suggestions="querySearchAsync"
        >
          <i slot="prefix" class="el-input__icon el-icon-search"></i>
          <template slot-scope="{ item }">
            <div v-html="highlightText(item.value)"></div>
          </template>
        </el-autocomplete>

// JS代码块
//this.cardData 为后台接口返回所有数据
querySearchAsync(queryString, cb) {
      var cardData = this.cardData;
      var results = queryString
        ? cardData.filter(this.createStateFilter(queryString))
        : cardData;
      this.resultsArr = [];
      results.forEach((item) => {
        this.resultsArr.push({ value: item.name });
      });
      cb(this.resultsArr);
    },
    createStateFilter(queryString) {
      return (item) => {
        return item.name.toLowerCase().includes(queryString.toLowerCase());
      };
    },
    highlightText(value) {
      if (this.searchInputData != "") {
        const regex = new RegExp(`(${this.searchInputData})`, "gi");
        return value.replace(regex, '<span style="color: #2773FF;">$1</span>');
      } else {
        return value;
      }
    },

效果图