JSFiddle - React, Tailwind, and code Playground

HTML

<header></header>
<ul>
   <li>
      <a href="#">Something</a>
   </li>
   <li>
      <a href="#">Something1</a>
   </li>
   <li>
      <a href="#">Something2</a>
   </li>
   <li>
      <a href="#">Something3</a>
   </li>
</ul>

JavaScript

$('ul li a').click(function(){
   $('header').html($(this).text());
});