JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>One</li>
    <li>two</li>
    <li>three</li>
</ul>
<input type="button" value='Get random text'/>

JavaScript

$('input').on('click',function(){
    var randomnum = Math.floor(Math.random()*$('ul li').length);
    alert($('ul li').eq(randomnum).text());
});