JSFiddle - React, Tailwind, and code Playground
HTML
<p id="demo"></p>
<script>
var txt = "";
var person = {fname:"John", lname:"Doe", age:25};
var x;
for (x in person) {
txt += person[x] + " ";
}
//document.getElementById("demo").innerHTML = txt;
document.getElementById("demo").innerHTML = person.fname;
</script>