JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<h1>
</h1>
<button id="btn">
Click
</button>
JavaScript
$(document).on("click",function(){
$("h1").text("Clicked");
for(var i=0;i<100000;i++){
console.log(i);
}
})