JSFiddle - React, Tailwind, and code Playground

HTML

<h4 id="a"></h4>
<h4 id="b"></h4>
<h4 id=c></h4>

JavaScript

var date = new Date();

var str = date.toLocaleTimeString();
jQuery('#a').text(str);

jQuery('#b').text(str.lastIndexOf(":"));

var s = '';
for (var i = 0; i < str.length; ++i)
    s  += str.charCodeAt(i) + ' ';
$('#c').text(s);