JSFiddle - React, Tailwind, and code Playground
HTML
<div class="thisDiv" isshown="true">
click here
</div>
JavaScript
let div = document.querySelector(".thisDiv")
div.addEventListener("click", function(){
console.log("")
var isShown = div.getAttribute("isshown");
console.log(`before: ${isShown}`)
isShown = !isShown;
div.setAttribute("isshown", isShown);
console.log(`after: ${isShown}`)
})