JSFiddle - React, Tailwind, and code Playground

HTML

<div class="level5">five</div>
<div class="level1">one</div>
<div class="level4">four</div>
<div class="level3">three</div>
<div class="level2">two</div>
<div class="level99">99</div>
<div class="level100">100</div>

JavaScript

$(function() {
    $("div").click(function(){
        function replacer(num)  {
            return (parseInt(num, 10) + 1);
        }
        var selector = $(this).attr("class").replace(/([\d]+)$/,replacer);    
        $("." + selector).hide();
    });
});