JSFiddle - React, Tailwind, and code Playground
HTML
<div id="one"></div>
<div id="two"></div>
JavaScript
var myname = 'John Doe';
//This is using Jquery
var htmltext = 'Hello <p style="color:red">'+myname+'This is a test</p>'
$('#one').html(htmltext);
//This is pure javascript
var text = `<div id="two">–</div>`,
doc = new DOMParser().parseFromString(text, "text/xml");
console.log(doc.innerHTML);