JSFiddle - React, Tailwind, and code Playground
HTML
<ul class="image-list">
<li class="image-item"><img src="/image1.jpg"/></li>
<li class="image-item"><img src="/image2.jpg"/></li>
<li class="image-item"><img src="/image3.jpg"/></li>
<li class="image-item"><img src="/image4.jpg"/></li>
</ul>
JavaScript
$('.image-list > .image-item').mouseover(function() {
alert($(this).find('img').attr('src'));
});