JSFiddle - React, Tailwind, and code Playground

HTML

<li><a href="#tab-allData">All data</a></li>
<li><a href="#tab-someOtherData">Some other data</a></li>
<li><a href="#tab-xyData">xyData</a></li>

JavaScript

$("li").click(function (event) {        
    var activeTab = $(this).find('a').attr('href').split('-')[1];        
       alert(activeTab);
});