JSFiddle - React, Tailwind, and code Playground
HTML
<img src>
JavaScript
var $elem = $("img[src='']"), elem = document.getElementsByTagName("img")[0]
console.log("attr('src')=", $elem.attr('src') +", typeof " + typeof $elem.attr('src') );
console.log("prop('src')=", $elem.prop('src') +", typeof " + typeof $elem.prop('src') );
console.log("img.src=" + elem.src +", typeof " + typeof elem.src )