# event-delegation

Published articles for event-delegation.

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## Understanding JavaScript Event Bubbling and Delegation Through an Accordion Refactor

DevFeed: [Understanding JavaScript Event Bubbling and Delegation Through an Accordion Refactor](<https://devfeed.tech/articles/understanding-javascript-event-bubbling-and-delegation-through-an-accordion-refactor-63981.md>)

Original publisher: [Read original article](<https://hackernoon.com/understanding-javascript-event-bubbling-and-delegation-through-an-accordion-refactor?source=rss>)

Author: Osaro Iyoha

Published: 2026-10-02T15:13:47Z

Content type: tutorial

Language: en

Sources: [HackerNoon](<https://devfeed.tech/sources/hackernoon.md>)

Topics: [Web Development](<https://devfeed.tech/topics/web-development.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>)

Tags: [dom-events](<https://devfeed.tech/tags/dom-events.md>), [dom-manipulation](<https://devfeed.tech/tags/dom-manipulation.md>), [event-bubbling](<https://devfeed.tech/tags/event-bubbling.md>), [event-delegation](<https://devfeed.tech/tags/event-delegation.md>), [event-listeners](<https://devfeed.tech/tags/event-listeners.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [javascript-fundamentals](<https://devfeed.tech/tags/javascript-fundamentals.md>), [refactor](<https://devfeed.tech/tags/refactor.md>), [refactoring](<https://devfeed.tech/tags/refactoring.md>)

### AI overview

A developer refactors a JavaScript accordion from separate click listeners tied together by parallel NodeLists to one delegated listener on the parent. The article explains how bubbling, event.target, .closest(), and DOM relationships identify the clicked accordion item, and shows built-in classList methods for toggling state. Delegation also handles accordion items added later without attaching new listeners.

### Source excerpt

A developer revisits an old JavaScript accordion to understand event bubbling, event delegation, .closest(), and cleaner ways to work with the DOM.