does .closest() check itself first?

by Brenton Strine

HTML

.closest() does indeed check itself first.
<div>
    <div>
        <div>
            <div class="baby">
                hello
            </div>
        </div>
    </div>
</div>

CSS

div { margin: 5px; padding:5px; border: solid 1px #ccc;}
.bright { border: solid 1px red; }

JavaScript

$(".baby").on("click", function(){
    $(this).closest("div").addClass("bright");   
    
});