How do I highlight search queries using Vue+html

Question

Here my search is working but I am a newbie and doesn't know how to use the npm...I am using HTML with VueJS to implement this and successsfully created the search filter but couldn't implement the highlight filter..Some leads are markjs.io that is used and some other custom vuejs filters but couldn't implement them.

class Post {
  constructor(title, link, author, img, course, coursel, cours, coursl, cour, courl, cou, coul, co, col) {
    this.title = title;
    this.link = link;
    this.author = author;
    this.img = img;
    this.course = course;
    this.coursel = coursel;
    this.cours = cours;
    this.coursl = coursl;
    this.cour = cour;
    this.courl = courl;
    this.cou = cou;
    this.coul = coul;
    this.co = co;
    this.col = col;
  }
}
const app = new Vue({
  el: "#app",
  data: {
    search: "",
    postList: [
      new Post("abc", null, "xyz", "wqw", "qwe", "", " ", null, " ", null, " ", null, " ", null, );
    ]
  },
  computed: {
    filteredList() {
      return this.postList.filter(post => {
        return post.title.toLowerCase().includes(this.search.toLowerCase()) ||
          post.author.toLowerCase().includes(this.search.toLowerCase()) || 
          post.course.toLowerCase().includes(this.search.toLowerCase()) || 
          post.cours.toLowerCase().includes(this.search.toLowerCase()) || 
          post.cour.toLowerCase().includes(this.search.toLowerCase()) || 
          post.cou.toLowerCase().includes(this.search.toLowerCase()) || 
          post.co.toLowerCase().includes(this.search.toLowerCase());
      });
    }
  }
});

Here is the HTML code I am using

<div id="app">
  <div class="search-wrapper">
    <input type="text" v-model="search" placeholder="Search"
      onfocus="if(this.value==this.defaultValue)this.value=''"    
      onblur="if(this.value=='')this.value=this.defaultValue" />
  </div>
  <div class="wrapper">
    <div class="col-lg-12 col-md-4 card" v-for="post in filteredList">
      <a v-bind:href="post.link" target="_blank">
        <img v-bind:src="post.img"/> 
        <div style="line-height:20%;">
          <br>
        </div>
        <font size="2">{{ post.author }}</font>
        <div class="brmedium"></div>
        <font size="5"><b><i><em>{{ post.title }}</em></i></b></font>
      <a v-bind:href="post.coursel" title="View Credential" target="_blank"><font size="3">{{ post.course }}</font></a>
      <a v-bind:href="post.coursl" title="View Credential" target="_blank"><font size="3">{{ post.cours }}</font></a>
      <a v-bind:href="post.courl" title="View Credential" target="_blank"><font size="3">{{ post.cour }}</font></a>
      <a v-bind:href="post.coul" title="View Credential" target="_blank"><font size="3">{{ post.cou }}</font></a>
      <a v-bind:href="post.col" title="View Credential" target="_blank"><font size="3">{{ post.co }}</font></a>
      </a>
    </div>
  </div>
</div>

Answer 1

<template>
  <div>
    <input v-model="text" @input="input" />
    <p id="x">
      Lorem ipsum dolor sit āmet, consetetur sadipscing elitr, sed diam nonumy
      eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam
      voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet
      clita kasd gubergren, nò sea takimata sanctus est Lorem ipsum dolor sit
      amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
      nonumy eirmod tempor invidunt ut labore et
    </p>
  </div>
</template>

<script>
/*eslint-disable */
export default {
  data() {
    return {
      t: String(""),
      text: String(""),
    };
  },
  mounted() {
    this.t = document.querySelector("#x").innerText;
  },
  methods: {
    input() {
      document.querySelector("#x").innerHTML = this.t.replaceAll(
        this.text,
        `<span class='h'>${this.text}</span>`
      );
    },
  },
};
</script>

<style>
.h {
  background: red;
}
</style>

Simple highligh searching this might help you