The answer
Use e.target.closest('.item') to find the relevant ancestor. For example, if a button inside a list item is clicked, closest('li') finds the list item.
Event Delegation Interview Questions
How do you handle clicks on nested elements in event delegation?
More FAQs in Event Delegation Interview Questions
Using event bubbling to handle events for multiple children with a single listener on the parent. The parent checks e.target to determine which child was clicked.
ul.addEventListener('click', e => { if (e.target.tagName === 'LI') console.log(e.target.textContent); }). One listener on the ul, check e.target for the clicked li.
Memory-efficient (one listener instead of many), works for dynamically added elements (no need to add new listeners), and simpler code (one handler instead of many).
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