JSFiddle - React, Tailwind, and code Playground

by Amy Ruddy

HTML

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<script
  src="https://code.jquery.com/jquery-3.3.1.min.js"
  integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
  crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

<nav class="navbar navbar-expand-sm navbar-dark bg-dark">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search" id="search">
      <button class="btn btn-outline-primary my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>
<div class='container py-2'>
  <h1>Search Bar Function</h1>
  <mark>Highlight text on search</mark>
  <hr>
  <p>Bacon ipsum dolor amet bresaola pancetta alcatra strip steak. Meatball turducken leberkas pork belly turkey. Rump fatback pork loin...

CSS

span.highlight {
  background-color: #0084ff6b !important;
}

JavaScript

var p = $('p'); 
$('input').keyup(function () {
	var input_value = this.value.trim();
  p.find('span.highlight').contents().unwrap();
  if (input_value) {
  	var my_reg_ex = new RegExp('(' + input_value.trim().split(/\s+/).join('|') + ')', "gi");
    p.html(function(i, html) {
      return html.replace(my_reg_ex, '<span class="highlight">$1</span>')
    });
  }
  

})