JSFiddle - React, Tailwind, and code Playground
by kthornbloom
HTML
<img src="https://picsum.photos/200/300">
JavaScript
var images = document.querySelectorAll("img");
for(var i = 0;i < images.length;i++){
var currentAlt = images[i].getAttribute('alt');
if(!currentAlt){
images[i].setAttribute('alt','TEST');
}
}