Description: Event bubbling is a phase of event propagation in the JavaScript event model, where an event starts from the target element and bubbles up through the DOM (Document Object Model) hierarchy to reach the root element. This process allows event handlers on parent elements to respond to events originating from their child elements. For example, if a user clicks a button inside a container, the click event will bubble from the button to the container and potentially up to the document. This feature is essential for event delegation, where handlers can be assigned to parent elements instead of each individual child element, optimizing performance and event management in web applications. Event bubbling is part of the JavaScript event model, which also includes the capturing phase, where the event propagates from the root element down to the target. The ability to handle events efficiently is crucial in web development, as it allows for smoother interactions and a better user experience.
