JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<span></span>
<span></span>
<span></span>
<span></span>

JavaScript

var span = document.getElementsByTagName("span")[3];
    var i = 0;
    (function looper() {
        if( i++ < 10 ) {
            span.innerHTML = "Cycles: " + i;
            setTimeout( looper, 1000);
        }
    })();