JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#"><img src="http://www.digitaldesktopwallpaper.com/wallpapers/denis-carl-flickr/005e.jpg" style="width:10%;" onerror="$(this).addClass('error');" /></a>
<a href="#"><img src="http://asdf.com/broken.jpg" onerror="$(this).addClass('error');" /></a> <!-- non valid URL -->

JavaScript

$('a').click(function() {
    if ($(this).find('img').hasClass('error')){
        alert('Image does not exist!');
    }
});