Okay, firstly the Event Object’s
Target's property doesn’t have a
closest() function, look it up. Wherever you ‘found’ that, it was supposed to be
$(event.target).closest(). It’s the JQuery HTMLElement that has that function. This isn’t JQuery.
currentTarget here will ALWAYS be the
div no matter how many elements are inside that div, no matter which one of those elements the user clicks/taps. You don’t need to navigate the DOM.