JSFiddle - React, Tailwind, and code Playground

HTML

<div id="spinner"></div>

CSS

#spinner{
    font-size: 45px;
    font-family: courier;
}

JavaScript

var chars = ["|", "/", "-", "\\"];
var count = 0;
var spin = function(){
             $("#spinner").text(chars[count]);
             count = (count + 1)%4;
             };

setInterval(spin, 150);