JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
<h2>small alpha</h2>
<li>a</li>
<li>b</li>
<li>C</li>
<a href="#">get</a>
</ul>
<ul>
<h2>big alpha</h2>
<li>A</li>
<li>B</li>
<li>C</li>
<a href="#">get</a>
</ul>
<ul>
<h2>number</h2>
<li>1</li>
<li>2</li>
<li>3</li>
<a href="#">get</a>
</ul>

JavaScript

var Arr= [];
$('a').click(function(){
Arr.push($(this).closest('ul').find('h2').text());
Arr[0]=[];
Arr[0].push($(this).closest('ul').find('li').text());
console.log(Arr)	
})