vue+Element實現搜索關鍵字高亮功能

<el-form :inline="true" :model="formQuery" >
 <el-row>
 <el-col :span="8">
 <el-form-item label="日志編碼" >
 <el-input v-model="formQuery.queryMessage1" ></el-input>
 </el-form-item>
 </el-col>
 <el-col :span="8" >
 <el-form-item label="日志編碼2">
 <el-input v-model="formQuery.queryMessage2" ></el-input>
 </el-form-item>
 </el-col>
 </el-row>
 <el-row>
 <el-col :span="20">
 <el-form-item label="日志編碼3">
 <el-input v-model="formQuery.queryMessage3" ></el-input> </el-form-item>
 </el-col>
 <el-col :span="4">
 <el-form-item>
 <el-button @click="loadData()" >查詢</el-button>
 </el-form-item>
 </el-col>
 </el-row>
</el-form>

<el-table :fit="true" ref="logInfosData" max-height="700" :data="logInfosData"
 element-loading-text="loading" :highlight-current-row="true"
 size="mini" >
 <el-table-column prop="_source.message" :label="$t('Loginformation')" sortable >
 <template slot-scope="scope">
 <span v-html="showData(message)"
 == <!--注意此處的寫法,該函數showData返回的結果是一段HTML代碼，在這里是直接進行填充，填充的內容是修改了關鍵字樣式以后的內容。-->==
 ></span>
 </template>
 </el-table-column>
</el-table>

computed:{
 // 實時監聽表格
 tables: function() {
 const search = this.listQuery.queryMessage||this.listQuery.queryMessage2||this.listQuery.queryMessage3
 if (search) {
 return this.logInfosData.filter(dataNews => {
 return Object.keys(dataNews).some(key => {
 return String(dataNews[key]).toLowerCase().indexOf(search) > -1
 })
 })
 }
 return this.tableData
 }
 }

// 篩選變色
 showData(val) {
 val = val + '';
 if (this.checkPara(val,this.listQuery.queryMessage)||this.checkPara(val,this.listQuery.queryMessage2)
 ||this.checkPara(val,this.listQuery.queryMessage3)) {
 //如果搜索結果記錄包含關鍵字中的任何一個，那么修改樣式
 return val.replace(this.listQuery.queryMessage'<font color="#409EFF">' + this.listQuery.prodcd + '</font>')
 .replace(this.listQuery.queryMessage2, '<font color="#409EFF">' + this.listQuery.queryMessage3 + '</font>')
 
 } else {
 return val //不做任何修改
 }
 },
 //判斷搜索記錄是否包含某個關鍵字
 checkPara(val,para){
 if (val.indexOf(para) !== -1 && para !== ''){
 return true;
 }else {
 return false
 }
 }