JSFiddle - React, Tailwind, and code Playground

HTML

<div id="element-to-be-commented">
    <div>Some div...</div>
    <div>Inspect the element underneath this</div>
</div>

JavaScript

var commentContainer = document.getElementById("element-to-be-commented");

var data = {name: "gon1387", notAnotherArray: [2,4,1]};

var convertedData = document.createComment(JSON.stringify(data));

commentContainer.appendChild(convertedData);