JSFiddle - React, Tailwind, and code Playground
by maremp
HTML
<img id="logo" src="logo.png" data-foo="bar">
<div id="data"></div>
JavaScript
var myImage = document.getElementById("logo");
var attr = "src";
var imgSrc = myImage.getAttribute(attr);
var dataEl = document.getElementById("data");
dataEl.innerHTML = attr + " " + imgSrc;