Javascript

1. const debug = new Debug('#sample1-dump');
2.  
3. $('#sample-1').on('click', (e) => {
4.     debug.dump($(e.target).is('li'));
5. });

HTML

1. <div id="sample-1">
2.     <ul>
3.       <li>list <strong>item 1</strong></li>
4.       <li><span>list item 2</span></li>
5.       <li>list item 3</li>
6.     </ul>
7. </div>
8. <div id="sample1-dump" class="result-window"></div>