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}`)
})