Mastering Event Handling: Bubble and Capture Your Way to Custom Event Success

Unlock the Power of Event Bubbling and Capturing for Seamless Custom Event Management

Photo by Max Okhrimenko on Unsplash

In the world of JavaScript, event handling is a crucial aspect of building interactive and responsive web applications. One powerful technique in your event handling arsenal is event bubbling and capturing. In this article, we’ll explore how you can leverage these concepts to create custom event handling that elevates your user experience.

Event Bubbling: Riding the Wave

Event bubbling is a mechanism in which an event triggered on a nested element “bubbles up” through its parent elements. This means that when an event occurs on a child element, the event handler on the parent element will also be triggered. To handle this, you can add event listeners to parent elements and capture the events as they bubble up.

// Example of event bubbling
const childElement = document.querySelector('#child');
const parentElement = document.querySelector('#parent');

childElement.addEventListener('click', (event) => {
  console.log('Child element clicked');
});

parentElement.addEventListener('click', (event) => {
  console.log('Parent element clicked');
});